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Fixed T-Display S3 MIDI left and right channel error issue

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lib/ESP32-audioI2S-3.0.6/.github/stale.yml vendored Normal file
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# Number of days of inactivity before an issue becomes stale
daysUntilStale: 60
# Number of days of inactivity before a stale issue is closed
daysUntilClose: 7
# Issues with these labels will never be considered stale
exemptLabels:
- pinned
- security
# Label to use when marking an issue as stale
staleLabel: wontfix
# Comment to post when marking an issue as stale. Set to `false` to disable
markComment: >
This issue has been automatically marked as stale because it has not had
recent activity. It will be closed if no further activity occurs. Thank you
for your contributions.
# Comment to post when closing a stale issue. Set to `false` to disable
closeComment: false

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lib/ESP32-audioI2S-3.0.6/CMakeLists.txt Normal file
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get_filename_component(dir ${CMAKE_CURRENT_LIST_FILE} PATH)
FILE(GLOB_RECURSE app_sources ${dir}/src/*.cpp)
idf_component_register(SRCS ${app_sources}
REQUIRES "ESP32-audioI2S"
INCLUDE_DIRS "src"
REQUIRES wear_levelling Arduino
)

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lib/ESP32-audioI2S-3.0.6/LICENSE Normal file
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(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
<program> Copyright (C) <year> <name of author>
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<https://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<https://www.gnu.org/licenses/why-not-lgpl.html>.

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# ESP32-audioI2S
:warning: **This library only works on multi-core ESP32 chips like the ESP32-S3. It does not work on the ESP32-S2 or the ESP32-C3** :warning:
Plays mp3, m4a and wav files from SD card via I2S with external hardware.
HELIX-mp3 and -aac decoder is included. There is also an OPUS decoder for Fullband, n VORBIS decoder and a FLAC decoder.
Works with MAX98357A (3 Watt amplifier with DAC), connected three lines (DOUT, BLCK, LRC) to I2S.
For stereo are two MAX98357A necessary. AudioI2S works with UDA1334A (Adafruit I2S Stereo Decoder Breakout Board), PCM5102A and CS4344.
Other HW may work but not tested. Plays also icy-streams and GoogleTTS. Can be compiled with Arduino IDE. [WIKI](https://github.com/schreibfaul1/ESP32-audioI2S/wiki)
```` c++
#include "Arduino.h"
#include "WiFi.h"
#include "Audio.h"
#include "SD.h"
#include "FS.h"
// Digital I/O used
#define SD_CS 5
#define SPI_MOSI 23
#define SPI_MISO 19
#define SPI_SCK 18
#define I2S_DOUT 25
#define I2S_BCLK 27
#define I2S_LRC 26
Audio audio;
String ssid = "*******";
String password = "*******";
void setup() {
pinMode(SD_CS, OUTPUT); digitalWrite(SD_CS, HIGH);
SPI.begin(SPI_SCK, SPI_MISO, SPI_MOSI);
Serial.begin(115200);
SD.begin(SD_CS);
WiFi.disconnect();
WiFi.mode(WIFI_STA);
WiFi.begin(ssid.c_str(), password.c_str());
while (WiFi.status() != WL_CONNECTED) delay(1500);
audio.setPinout(I2S_BCLK, I2S_LRC, I2S_DOUT);
audio.setVolume(21); // default 0...21
// or alternative
// audio.setVolumeSteps(64); // max 255
// audio.setVolume(63);
//
// *** radio streams ***
audio.connecttohost("http://stream.antennethueringen.de/live/aac-64/stream.antennethueringen.de/"); // aac
// audio.connecttohost("http://mcrscast.mcr.iol.pt/cidadefm"); // mp3
// audio.connecttohost("http://www.wdr.de/wdrlive/media/einslive.m3u"); // m3u
// audio.connecttohost("https://stream.srg-ssr.ch/rsp/aacp_48.asx"); // asx
// audio.connecttohost("http://tuner.classical102.com/listen.pls"); // pls
// audio.connecttohost("http://stream.radioparadise.com/flac"); // flac
// audio.connecttohost("http://stream.sing-sing-bis.org:8000/singsingFlac"); // flac (ogg)
// audio.connecttohost("http://s1.knixx.fm:5347/dein_webradio_vbr.opus"); // opus (ogg)
// audio.connecttohost("http://stream2.dancewave.online:8080/dance.ogg"); // vorbis (ogg)
// audio.connecttohost("http://26373.live.streamtheworld.com:3690/XHQQ_FMAAC/HLSTS/playlist.m3u8"); // HLS
// audio.connecttohost("http://eldoradolive02.akamaized.net/hls/live/2043453/eldorado/master.m3u8"); // HLS (ts)
// *** web files ***
// audio.connecttohost("https://github.com/schreibfaul1/ESP32-audioI2S/raw/master/additional_info/Testfiles/Pink-Panther.wav"); // wav
// audio.connecttohost("https://github.com/schreibfaul1/ESP32-audioI2S/raw/master/additional_info/Testfiles/Santiano-Wellerman.flac"); // flac
// audio.connecttohost("https://github.com/schreibfaul1/ESP32-audioI2S/raw/master/additional_info/Testfiles/Olsen-Banden.mp3"); // mp3
// audio.connecttohost("https://github.com/schreibfaul1/ESP32-audioI2S/raw/master/additional_info/Testfiles/Miss-Marple.m4a"); // m4a (aac)
// audio.connecttohost("https://github.com/schreibfaul1/ESP32-audioI2S/raw/master/additional_info/Testfiles/Collide.ogg"); // vorbis
// audio.connecttohost("https://github.com/schreibfaul1/ESP32-audioI2S/raw/master/additional_info/Testfiles/sample.opus"); // opus
// *** local files ***
// audio.connecttoFS(SD, "/test.wav"); // SD
// audio.connecttoFS(SD_MMC, "/test.wav"); // SD_MMC
// audio.connecttoFS(SPIFFS, "/test.wav"); // SPIFFS
// audio.connecttospeech("Wenn die Hunde schlafen, kann der Wolf gut Schafe stehlen.", "de"); // Google TTS
}
void loop()
{
audio.loop();
}
// optional
void audio_info(const char *info){
Serial.print("info "); Serial.println(info);
}
void audio_id3data(const char *info){ //id3 metadata
Serial.print("id3data ");Serial.println(info);
}
void audio_eof_mp3(const char *info){ //end of file
Serial.print("eof_mp3 ");Serial.println(info);
}
void audio_showstation(const char *info){
Serial.print("station ");Serial.println(info);
}
void audio_showstreamtitle(const char *info){
Serial.print("streamtitle ");Serial.println(info);
}
void audio_bitrate(const char *info){
Serial.print("bitrate ");Serial.println(info);
}
void audio_commercial(const char *info){ //duration in sec
Serial.print("commercial ");Serial.println(info);
}
void audio_icyurl(const char *info){ //homepage
Serial.print("icyurl ");Serial.println(info);
}
void audio_lasthost(const char *info){ //stream URL played
Serial.print("lasthost ");Serial.println(info);
}
void audio_eof_speech(const char *info){
Serial.print("eof_speech ");Serial.println(info);
}
````
Breadboard
![Breadboard](https://github.com/schreibfaul1/ESP32-audioI2S/blob/master/additional_info/Breadboard.jpg)
Wiring
![Wiring](https://github.com/schreibfaul1/ESP32-audioI2S/blob/master/additional_info/ESP32_I2S_PCM5102A.JPG)
Impulse diagram
![Impulse diagram](https://github.com/schreibfaul1/ESP32-audioI2S/blob/master/additional_info/Impulsdiagramm.jpg)

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#EXTM3U
#EXTINF:18,Bjarne Liller - Olsen Banden (Titelmusik der Olsenbande) - Olsen-Banden.mp3
https://raw.githubusercontent.com/schreibfaul1/ESP32-audioI2S/master/additional_info/Testfiles/Olsen-Banden.mp3
#EXTINF:10,Santiano-Wellermann - Santiano-Wellerman.flac
https://raw.githubusercontent.com/schreibfaul1/ESP32-audioI2S/master/additional_info/Testfiles/Santiano-Wellerman.flac

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//
// !!! WARNING !!! AUTO-GENERATED FILE!
// PLEASE DO NOT MODIFY IT AND USE "platformio.ini":
// https://docs.platformio.org/page/projectconf/section_env_build.html#build-flags
//
{
"configurations": [
{
"name": "PlatformIO",
"includePath": [
"/media/wolle/DRIVE-N-GO/platformio-workspace/Better_WiFi_throughput/include",
"/media/wolle/DRIVE-N-GO/platformio-workspace/Better_WiFi_throughput/src",
"/media/wolle/DRIVE-N-GO/platformio-workspace/Better_WiFi_throughput/.pio/libdeps/esp32dev/ESP32-audioI2S-master/src",
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// PIO Unified Debugger
//
// Documentation: https://docs.platformio.org/page/plus/debugging.html
// Configuration: https://docs.platformio.org/page/projectconf/section_env_debug.html
{
"version": "0.2.0",
"configurations": [
{
"type": "platformio-debug",
"request": "launch",
"name": "PIO Debug",
"executable": "/media/wolle/DRIVE-N-GO/platformio-workspace/Better_WiFi_throughput/.pio/build/esp32dev/firmware.elf",
"projectEnvName": "esp32dev",
"toolchainBinDir": "/home/wolle/.platformio/packages/toolchain-xtensa-esp32@8.4.0+2021r2-patch5/bin",
"internalConsoleOptions": "openOnSessionStart",
"preLaunchTask": {
"type": "PlatformIO",
"task": "Pre-Debug"
}
},
{
"type": "platformio-debug",
"request": "launch",
"name": "PIO Debug (skip Pre-Debug)",
"executable": "/media/wolle/DRIVE-N-GO/platformio-workspace/Better_WiFi_throughput/.pio/build/esp32dev/firmware.elf",
"projectEnvName": "esp32dev",
"toolchainBinDir": "/home/wolle/.platformio/packages/toolchain-xtensa-esp32@8.4.0+2021r2-patch5/bin",
"internalConsoleOptions": "openOnSessionStart"
},
{
"type": "platformio-debug",
"request": "launch",
"name": "PIO Debug (without uploading)",
"executable": "/media/wolle/DRIVE-N-GO/platformio-workspace/Better_WiFi_throughput/.pio/build/esp32dev/firmware.elf",
"projectEnvName": "esp32dev",
"toolchainBinDir": "/home/wolle/.platformio/packages/toolchain-xtensa-esp32@8.4.0+2021r2-patch5/bin",
"internalConsoleOptions": "openOnSessionStart",
"loadMode": "manual"
}
]
}

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cmake_minimum_required(VERSION 3.16.0)
include($ENV{IDF_PATH}/tools/cmake/project.cmake)
project(Better_WiFi_throughput)

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# ESP32-audioI2S, better WiFi speed
with a high bit rate or low compression rate, the data throughput via WiFi may not be sufficient to fill the audio buffer sufficiently. In this case, the message 'slow stream, dropouts are possible' appears periodically. Better TCP settings can help. This can be achieved via menuconfig followed by Arduino compilation.
Here is a complete example that can be easily copy that into PlatformIO.
````c++
#include <Arduino.h>
#include "WiFiMulti.h"
#include "Audio.h"
Audio audio;
WiFiMulti wifiMulti;
String ssid = "xxxx";
String password = "xxxx";
#define I2S_LRC 26
#define I2S_DOUT 25
#define I2S_BCLK 27
#define I2S_MCLK 0
void setup() {
Serial.begin(115200);
wifiMulti.addAP(ssid.c_str(), password.c_str());
wifiMulti.run();
audio.setPinout(I2S_BCLK, I2S_LRC, I2S_DOUT, -1, -1);
audio.setVolume(20); // 0...21
audio.connecttohost("http://us3.internet-radio.com:8342/stream");
}
void loop(){
audio.loop();
}
// optional
void audio_info(const char *info){
Serial.print("info "); Serial.println(info);
}
````
These are the main settings:
![menuconfig](https://github.com/schreibfaul1/ESP32-audioI2S/blob/master/examples/Better_WiFi_throughput/better_WiFi_throughput.jpeg)

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{
"build": {
"arduino":{
"ldscript": "esp32s3_out.ld",
"memory_type": "qio_qspi"
},
"core": "esp32",
"extra_flags": [
"-DARDUINO_ESP32S3_12K",
"-DBOARD_HAS_PSRAM",
"-DARDUINO_USB_CDC_ON_BOOT=0",
"-DARDUINO_RUNNING_CORE=1",
"-DARDUINO_EVENT_RUNNING_CORE=1"
],
"f_cpu": "240000000L",
"f_flash": "80000000L",
"flash_mode": "qio",
"boot_freq": "120000000L",
"mcu": "esp32s3",
"variant": "esp32s3"
},
"connectivity": [
"wifi"
],
"debug": {
"default_tool": "esp-builtin",
"onboard_tools": [
"esp-builtin"
],
"openocd_target": "esp32s3.cfg"
},
"frameworks": [
"arduino",
"espidf"
],
"name": "AI Thinker",
"upload": {
"flash_size": "8MB",
"maximum_ram_size": 327680,
"maximum_size": 8388608,
"use_1200bps_touch": true,
"wait_for_upload_port": true,
"require_upload_port": true,
"speed": 460800
},
"url": "https://docs.ai-thinker.com/_media/esp32/docs/esp-s3-12k_v1.0.0.pdf",
"vendor": "AI Thinker"
}

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dependencies:
idf:
component_hash: null
source:
type: idf
version: 4.4.4
manifest_hash: 42970b56113a87cad113a232ae5a1819df2189a399da7d82d7a91f5a62d9e1a1
target: esp32
version: 1.0.0

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This directory is intended for project header files.
A header file is a file containing C declarations and macro definitions
to be shared between several project source files. You request the use of a
header file in your project source file (C, C++, etc) located in `src` folder
by including it, with the C preprocessing directive `#include'.
```src/main.c
#include "header.h"
int main (void)
{
...
}
```
Including a header file produces the same results as copying the header file
into each source file that needs it. Such copying would be time-consuming
and error-prone. With a header file, the related declarations appear
in only one place. If they need to be changed, they can be changed in one
place, and programs that include the header file will automatically use the
new version when next recompiled. The header file eliminates the labor of
finding and changing all the copies as well as the risk that a failure to
find one copy will result in inconsistencies within a program.
In C, the usual convention is to give header files names that end with `.h'.
It is most portable to use only letters, digits, dashes, and underscores in
header file names, and at most one dot.
Read more about using header files in official GCC documentation:
* Include Syntax
* Include Operation
* Once-Only Headers
* Computed Includes
https://gcc.gnu.org/onlinedocs/cpp/Header-Files.html

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This directory is intended for project specific (private) libraries.
PlatformIO will compile them to static libraries and link into executable file.
The source code of each library should be placed in a an own separate directory
("lib/your_library_name/[here are source files]").
For example, see a structure of the following two libraries `Foo` and `Bar`:
|--lib
| |
| |--Bar
| | |--docs
| | |--examples
| | |--src
| | |- Bar.c
| | |- Bar.h
| | |- library.json (optional, custom build options, etc) https://docs.platformio.org/page/librarymanager/config.html
| |
| |--Foo
| | |- Foo.c
| | |- Foo.h
| |
| |- README --> THIS FILE
|
|- platformio.ini
|--src
|- main.c
and a contents of `src/main.c`:
```
#include <Foo.h>
#include <Bar.h>
int main (void)
{
...
}
```
PlatformIO Library Dependency Finder will find automatically dependent
libraries scanning project source files.
More information about PlatformIO Library Dependency Finder
- https://docs.platformio.org/page/librarymanager/ldf.html

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# Name, Type, SubType, Offset, Size
nvs, data, nvs, 0x9000, 0x4000
phy_init, data, phy, 0xd000, 0x1000
factory, app, factory, 0x10000, 3M,
1 # Name, Type, SubType, Offset, Size
2 nvs, data, nvs, 0x9000, 0x4000
3 phy_init, data, phy, 0xd000, 0x1000
4 factory, app, factory, 0x10000, 3M,

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; PlatformIO Project Configuration File
;
; Build options: build flags, source filter
; Upload options: custom upload port, speed and extra flags
; Library options: dependencies, extra library storages
; Advanced options: extra scripting
;
; Please visit documentation for the other options and examples
; https://docs.platformio.org/en/latest/platforms/espressif32.html
[env:esp32dev]
platform = https://github.com/platformio/platform-espressif32.git#v6.2.0 ; ESP-IDF v4.4.4
platform_packages = framework-arduinoespressif32 @ https://github.com/espressif/arduino-esp32.git#2.0.8
;framework = arduino
framework = arduino, espidf
board = esp32dev ;chipmodel ESP32, 4M FLASH, USBtoTTL
;board = um_tinys3 ;chipmodel ESP32S3, 8M FLASH, HAS_PSRAM, SerialUSB
;board = esp32-12k ;chipmodel ESP32S3, 8M FLASH, HAS_PSRAM, USBtoTTL
board_build.f_cpu = 240000000L
board_build.flash_size=4MB
board_build.flash_freq=80M
board_build.spiram_mode=2
monitor_speed = 115200
monitor_filters = esp32_exception_decoder
board_build.partitions = partitions.csv
upload_speed = 460800 ; 921600, 512000, 460800, 256000, 115200
lib_deps =
https://github.com/schreibfaul1/ESP32-audioI2S.git
board_upload.maximum_size = 3145728
board_upload.flash_size = 4MB
board_build.flash_mode = qio
board_build.bootloader = dio
board_build.arduino.upstream_packages = no
;build_flags = -DCORE_DEBUG_LEVEL=0 ; None
;build_flags = -DCORE_DEBUG_LEVEL=1 ; Error
;build_flags = -DCORE_DEBUG_LEVEL=2 ; Warn
;build_flags = -DCORE_DEBUG_LEVEL=3 ; Info
;build_flags = -DCORE_DEBUG_LEVEL=4 ; Debug
;build_flags = -DCORE_DEBUG_LEVEL=5 ; Verbose
build_flags =
-Wall
-Wextra
-DCORE_DEBUG_LEVEL=3
-DCONFIG_ARDUHAL_LOG_COLORS
-DBOARD_HAS_PSRAM
; -DAUDIO_LOG
-DARDUINO_RUNNING_CORE=1 ; Arduino Runs On Core (setup, loop)
-DARDUINO_EVENT_RUNNING_CORE=1 ; Events Run On Core
build_unflags =
; -DARDUINO_USB_CDC_ON_BOOT=0 ; traditional log
; -DBOARD_HAS_PSRAM

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# This file was automatically generated for projects
# without default 'CMakeLists.txt' file.
FILE(GLOB_RECURSE app_sources ${CMAKE_SOURCE_DIR}/src/*.*)
idf_component_register(SRCS ${app_sources})

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#include <Arduino.h>
#include "WiFiMulti.h"
#include "Audio.h"
Audio audio;
WiFiMulti wifiMulti;
String ssid = "xxxx";
String password = "xxxx";
#define I2S_LRC 26
#define I2S_DOUT 25
#define I2S_BCLK 27
#define I2S_MCLK 0
void setup() {
Serial.begin(115200);
wifiMulti.addAP(ssid.c_str(), password.c_str());
wifiMulti.run();
audio.setPinout(I2S_BCLK, I2S_LRC, I2S_DOUT, -1, -1);
audio.setVolume(20); // 0...21
audio.setConnectionTimeout(500, 2700);
audio.connecttohost("http://us3.internet-radio.com:8342/stream");
}
void loop(){
audio.loop();
}
// optional
void audio_info(const char *info){
Serial.print("info "); Serial.println(info);
}

11
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This directory is intended for PlatformIO Test Runner and project tests.
Unit Testing is a software testing method by which individual units of
source code, sets of one or more MCU program modules together with associated
control data, usage procedures, and operating procedures, are tested to
determine whether they are fit for use. Unit testing finds problems early
in the development cycle.
More information about PlatformIO Unit Testing:
- https://docs.platformio.org/en/latest/advanced/unit-testing/index.html

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//
// !!! WARNING !!! AUTO-GENERATED FILE!
// PLEASE DO NOT MODIFY IT AND USE "platformio.ini":
// https://docs.platformio.org/page/projectconf/section_env_build.html#build-flags
//
{
"configurations": [
{
"name": "PlatformIO",
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"/home/wolle/.platformio/packages/framework-arduinoespressif32@src-f2ea83e2545300b10a69ff44ef9dc6cd/tools/sdk/esp32/include/esp_hw_support/port/esp32/private_include",
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"/home/wolle/.platformio/packages/framework-arduinoespressif32@src-f2ea83e2545300b10a69ff44ef9dc6cd/tools/sdk/esp32/include/lwip/lwip/src/include",
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"/home/wolle/.platformio/packages/framework-arduinoespressif32@src-f2ea83e2545300b10a69ff44ef9dc6cd/tools/sdk/esp32/include/lwip/port/esp32/include/arch",
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"/home/wolle/.platformio/packages/framework-arduinoespressif32@src-f2ea83e2545300b10a69ff44ef9dc6cd/libraries/Update/src",
"/home/wolle/.platformio/packages/framework-arduinoespressif32@src-f2ea83e2545300b10a69ff44ef9dc6cd/libraries/WebServer/src",
"/home/wolle/.platformio/packages/framework-arduinoespressif32@src-f2ea83e2545300b10a69ff44ef9dc6cd/libraries/WiFiClientSecure/src",
"/home/wolle/.platformio/packages/framework-arduinoespressif32@src-f2ea83e2545300b10a69ff44ef9dc6cd/libraries/WiFiProv/src",
"/home/wolle/.platformio/packages/framework-arduinoespressif32@src-f2ea83e2545300b10a69ff44ef9dc6cd/libraries/Wire/src",
""
]
},
"defines": [
"PLATFORMIO=60105",
"ARDUINO_ESP32_DEV",
"CORE_DEBUG_LEVEL=3",
"CONFIG_ARDUHAL_LOG_COLORS",
"BOARD_HAS_PSRAM",
"ARDUINO_RUNNING_CORE=3",
"ARDUINO_EVENT_RUNNING_CORE=1",
"HAVE_CONFIG_H",
"MBEDTLS_CONFIG_FILE=\"mbedtls/esp_config.h\"",
"UNITY_INCLUDE_CONFIG_H",
"WITH_POSIX",
"_GNU_SOURCE",
"IDF_VER=\"v4.4.2\"",
"ESP_PLATFORM",
"_POSIX_READER_WRITER_LOCKS",
"ARDUINO_ARCH_ESP32",
"ESP32",
"F_CPU=240000000L",
"ARDUINO=10812",
"ARDUINO_VARIANT=\"esp32\"",
"ARDUINO_BOARD=\"Espressif ESP32 Dev Module\"",
"ARDUINO_PARTITION_default",
""
],
"cStandard": "c99",
"cppStandard": "c++11",
"compilerPath": "/home/wolle/.platformio/packages/toolchain-xtensa-esp32/bin/xtensa-esp32-elf-gcc",
"compilerArgs": [
"-mlongcalls",
""
]
}
],
"version": 4
}

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{
// See http://go.microsoft.com/fwlink/?LinkId=827846
// for the documentation about the extensions.json format
"recommendations": [
"platformio.platformio-ide"
],
"unwantedRecommendations": [
"ms-vscode.cpptools-extension-pack"
]
}

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// AUTOMATICALLY GENERATED FILE. PLEASE DO NOT MODIFY IT MANUALLY
//
// PIO Unified Debugger
//
// Documentation: https://docs.platformio.org/page/plus/debugging.html
// Configuration: https://docs.platformio.org/page/projectconf/section_env_debug.html
{
"version": "0.2.0",
"configurations": [
{
"type": "platformio-debug",
"request": "launch",
"name": "PIO Debug",
"executable": "/media/wolle/DRIVE-N-GO/platformio-workspace/ESP32_WebServer/.pio/build/esp32dev/firmware.elf",
"projectEnvName": "esp32dev",
"toolchainBinDir": "/home/wolle/.platformio/packages/toolchain-xtensa-esp32/bin",
"internalConsoleOptions": "openOnSessionStart",
"preLaunchTask": {
"type": "PlatformIO",
"task": "Pre-Debug"
}
},
{
"type": "platformio-debug",
"request": "launch",
"name": "PIO Debug (skip Pre-Debug)",
"executable": "/media/wolle/DRIVE-N-GO/platformio-workspace/ESP32_WebServer/.pio/build/esp32dev/firmware.elf",
"projectEnvName": "esp32dev",
"toolchainBinDir": "/home/wolle/.platformio/packages/toolchain-xtensa-esp32/bin",
"internalConsoleOptions": "openOnSessionStart"
},
{
"type": "platformio-debug",
"request": "launch",
"name": "PIO Debug (without uploading)",
"executable": "/media/wolle/DRIVE-N-GO/platformio-workspace/ESP32_WebServer/.pio/build/esp32dev/firmware.elf",
"projectEnvName": "esp32dev",
"toolchainBinDir": "/home/wolle/.platformio/packages/toolchain-xtensa-esp32/bin",
"internalConsoleOptions": "openOnSessionStart",
"loadMode": "manual"
}
]
}

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This directory is intended for project header files.
A header file is a file containing C declarations and macro definitions
to be shared between several project source files. You request the use of a
header file in your project source file (C, C++, etc) located in `src` folder
by including it, with the C preprocessing directive `#include'.
```src/main.c
#include "header.h"
int main (void)
{
...
}
```
Including a header file produces the same results as copying the header file
into each source file that needs it. Such copying would be time-consuming
and error-prone. With a header file, the related declarations appear
in only one place. If they need to be changed, they can be changed in one
place, and programs that include the header file will automatically use the
new version when next recompiled. The header file eliminates the labor of
finding and changing all the copies as well as the risk that a failure to
find one copy will result in inconsistencies within a program.
In C, the usual convention is to give header files names that end with `.h'.
It is most portable to use only letters, digits, dashes, and underscores in
header file names, and at most one dot.
Read more about using header files in official GCC documentation:
* Include Syntax
* Include Operation
* Once-Only Headers
* Computed Includes
https://gcc.gnu.org/onlinedocs/cpp/Header-Files.html

46
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This directory is intended for project specific (private) libraries.
PlatformIO will compile them to static libraries and link into executable file.
The source code of each library should be placed in a an own separate directory
("lib/your_library_name/[here are source files]").
For example, see a structure of the following two libraries `Foo` and `Bar`:
|--lib
| |
| |--Bar
| | |--docs
| | |--examples
| | |--src
| | |- Bar.c
| | |- Bar.h
| | |- library.json (optional, custom build options, etc) https://docs.platformio.org/page/librarymanager/config.html
| |
| |--Foo
| | |- Foo.c
| | |- Foo.h
| |
| |- README --> THIS FILE
|
|- platformio.ini
|--src
|- main.c
and a contents of `src/main.c`:
```
#include <Foo.h>
#include <Bar.h>
int main (void)
{
...
}
```
PlatformIO Library Dependency Finder will find automatically dependent
libraries scanning project source files.
More information about PlatformIO Library Dependency Finder
- https://docs.platformio.org/page/librarymanager/ldf.html

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/*
* websrv.cpp
*
* Created on: 09.07.2017
* updated on: 19.10.2022
* Author: Wolle
*/
#include "websrv.h"
//--------------------------------------------------------------------------------------------------------------
WebSrv::WebSrv(String Name, String Version){
_Name=Name; _Version=Version;
method = HTTP_NONE;
}
//--------------------------------------------------------------------------------------------------------------
void WebSrv::show_not_found(){
cmdclient.print("HTTP/1.1 404 Not Found\n\n");
return;
}
//--------------------------------------------------------------------------------------------------------------
String WebSrv::calculateWebSocketResponseKey(String sec_WS_key){
// input Sec-WebSocket-Key from client
// output Sec-WebSocket-Accept-Key (used in response message to client)
unsigned char sha1_result[20];
String concat = sec_WS_key + WS_sec_conKey;
mbedtls_sha1_ret((unsigned char*)concat.c_str(), concat.length(), (unsigned char*) sha1_result );
return base64::encode(sha1_result, 20);
}
//--------------------------------------------------------------------------------------------------------------
void WebSrv::printWebSocketHeader(String wsRespKey){
String wsHeader = (String)"HTTP/1.1 101 Switching Protocols\r\n" +
"Upgrade: websocket\r\n" +
"Connection: Upgrade\r\n" +
"Sec-WebSocket-Accept: " + wsRespKey + "\r\n" +
"Access-Control-Allow-Origin: \r\n\r\n";
// "Sec-WebSocket-Protocol: chat\r\n\r\n";
//log_i("wsheader %s", wsHeader.c_str());
webSocketClient.print(wsHeader) ; // header sent
}
//--------------------------------------------------------------------------------------------------------------
void WebSrv::show(const char* pagename, int16_t len){
uint TCPCHUNKSIZE = 1024; // Max number of bytes per write
size_t pagelen=0, res=0; // Size of requested page
const unsigned char* p;
p = reinterpret_cast<const unsigned char*>(pagename);
if(len==-1){
pagelen=strlen(pagename);
}
else{
if(len>0) pagelen = len;
}
while((*p=='\n') && (pagelen>0)){ // If page starts with newline:
p++; // Skip first character
pagelen--;
}
// HTTP header
String httpheader="";
httpheader += "HTTP/1.1 200 OK\r\n";
httpheader += "Connection: close\r\n";
httpheader += "Content-type: text/html\r\n";
httpheader += "Content-Length: " + String(pagelen, 10) + "\r\n";
httpheader += "Server: " + _Name+ "\r\n";
httpheader += "Cache-Control: max-age=86400\r\n";
httpheader += "Last-Modified: " + _Version + "\r\n\r\n";
cmdclient.print(httpheader) ; // header sent
sprintf(buff, "Length of page is %d", pagelen);
if(WEBSRV_onInfo) WEBSRV_onInfo(buff);
// The content of the HTTP response follows the header:
while(pagelen){ // Loop through the output page
if (pagelen <= TCPCHUNKSIZE){ // Near the end?
res=cmdclient.write(p, pagelen); // Yes, send last part
if(res!=pagelen){
log_e("write error in webpage");
cmdclient.clearWriteError();
return;
}
pagelen = 0;
}
else{
res=cmdclient.write(p, TCPCHUNKSIZE); // Send part of the page
if(res!=TCPCHUNKSIZE){
log_e("write error in webpage");
cmdclient.clearWriteError();
return;
}
p += TCPCHUNKSIZE; // Update startpoint and rest of bytes
pagelen -= TCPCHUNKSIZE;
}
}
return;
}
//--------------------------------------------------------------------------------------------------------------
boolean WebSrv::streamfile(fs::FS &fs,const char* path){ // transfer file from SD to webbrowser
size_t bytesPerTransaction = 1024;
uint8_t transBuf[bytesPerTransaction], i=0;
size_t wIndex = 0, res=0, leftover=0;
if(!cmdclient.connected()){log_e("not connected"); return false;}
while(path[i] != 0){ // protect SD for invalid signs to avoid a crash!!
if(path[i] < 32)return false;
i++;
}
if(!fs.exists(path)) return false;
File file = fs.open(path, "r");
if(!file){
sprintf(buff, "Failed to open file for reading %s", path);
if(WEBSRV_onInfo) WEBSRV_onInfo(buff);
show_not_found();
return false;
}
sprintf(buff, "Length of file %s is %d", path, file.size());
if(WEBSRV_onInfo) WEBSRV_onInfo(buff);
// HTTP header
String httpheader="";
httpheader += "HTTP/1.1 200 OK\r\n";
httpheader += "Connection: close\r\n";
httpheader += "Content-type: " + getContentType(String(path)) +"\r\n";
httpheader += "Content-Length: " + String(file.size(),10) + "\r\n";
httpheader += "Server: " + _Name+ "\r\n";
httpheader += "Cache-Control: max-age=86400\r\n";
httpheader += "Last-Modified: " + _Version + "\r\n\r\n";
cmdclient.print(httpheader) ; // header sent
while(wIndex+bytesPerTransaction < file.size()){
file.read(transBuf, bytesPerTransaction);
res=cmdclient.write(transBuf, bytesPerTransaction);
wIndex+=res;
if(res!=bytesPerTransaction){
log_i("write error %s", path);
cmdclient.clearWriteError();
return false;
}
}
leftover=file.size()-wIndex;
file.read(transBuf, leftover);
res=cmdclient.write(transBuf, leftover);
wIndex+=res;
if(res!=leftover){
log_i("write error %s", path);
cmdclient.clearWriteError();
return false;
}
if(wIndex!=file.size()) log_e("file %s not correct sent", path);
file.close();
return true;
}
//--------------------------------------------------------------------------------------------------------------
boolean WebSrv::send(String msg, uint8_t opcode) { // sends text messages via websocket
return send(msg.c_str(), opcode);
}
//--------------------------------------------------------------------------------------------------------------
boolean WebSrv::send(const char *msg, uint8_t opcode) { // sends text messages via websocket
uint8_t headerLen = 2;
if(!hasclient_WS) {
// log_e("can't send, websocketserver not connected");
return false;
}
size_t msgLen = strlen(msg);
if(msgLen > UINT16_MAX) {
log_e("send: message too long, greather than 64kB");
return false;
}
uint8_t fin = 1;
uint8_t rsv1 = 0;
uint8_t rsv2 = 0;
uint8_t rsv3 = 0;
uint8_t mask = 0;
buff[0] = (128 * fin) + (64 * rsv1) + (32 * rsv2) + (16 * rsv3) + opcode;
if(msgLen < 126) {
buff[1] = (128 * mask) + msgLen;
}
else {
headerLen = 4;
buff[1] = (128 * mask) + 126;
buff[2] = (msgLen >> 8) & 0xFF;
buff[3] = msgLen & 0xFF;
}
webSocketClient.write(buff, headerLen);
webSocketClient.write(msg, msgLen);
return true;
}
//--------------------------------------------------------------------------------------------------------------
void WebSrv::sendPing(){ // heartbeat, keep alive via websockets
if(!hasclient_WS) {
return;
}
uint8_t fin = 1;
uint8_t rsv1 = 0;
uint8_t rsv2 = 0;
uint8_t rsv3 = 0;
uint8_t mask = 0;
buff[0] = (128 * fin) + (64 * rsv1) + (32 * rsv2) + (16 * rsv3) + Ping_Frame;
buff[1] = (128 * mask) + 0;
webSocketClient.write(buff,2);
}
//--------------------------------------------------------------------------------------------------------------
void WebSrv::sendPong(){ // heartbeat, keep alive via websockets
if(!hasclient_WS) {
return;
}
uint8_t fin = 1;
uint8_t rsv1 = 0;
uint8_t rsv2 = 0;
uint8_t rsv3 = 0;
uint8_t mask = 0;
buff[0] = (128 * fin) + (64 * rsv1) + (32 * rsv2) + (16 * rsv3) + Pong_Frame;
buff[1] = (128 * mask) + 0;
webSocketClient.write(buff,2);
}
//--------------------------------------------------------------------------------------------------------------
boolean WebSrv::uploadB64image(fs::FS &fs,const char* path, uint32_t contentLength){ // transfer imagefile from webbrowser to SD
size_t bytesPerTransaction = 1024;
uint8_t tBuf[bytesPerTransaction];
uint16_t av, i, j;
uint32_t len = contentLength;
boolean f_werror=false;
String str="";
int n=0;
File file;
fs.remove(path); // Remove a previous version, otherwise data is appended the file again
file = fs.open(path, FILE_WRITE); // Open the file for writing (create it, if doesn't exist)
log_i("ContentLength %i", contentLength);
str = str + cmdclient.readStringUntil(','); // data:image/jpeg;base64,
len -= str.length();
while(cmdclient.available()){
av=cmdclient.available();
if(av==0) break;
if(av>bytesPerTransaction) av=bytesPerTransaction;
if(av>len) av=len;
len -= av;
i=0; j=0;
cmdclient.read(tBuf, av); // b64 decode
while(i<av){
if(tBuf[i]==0)break; // ignore all other stuff
n=B64index[tBuf[i]]<<18 | B64index[tBuf[i+1]]<<12 | B64index[tBuf[i+2]]<<6 | B64index[tBuf[i+3]];
tBuf[j ]= n>>16;
tBuf[j+1]= n>>8 & 0xFF;
tBuf[j+2]= n & 0xFF;
i+=4;
j+=3;
}
if(tBuf[j]=='=') j--;
if(tBuf[j]=='=') j--; // remove =
if(file.write(tBuf, j)!=j) f_werror=true; // write error?
if(len == 0) break;
}
cmdclient.readStringUntil('\n'); // read the remains, first \n
cmdclient.readStringUntil('\n'); // read the remains webkit\n
file.close();
if(f_werror) {
sprintf(buff, "File: %s write error", path);
if(WEBSRV_onInfo) WEBSRV_onInfo(buff);
return false;
}
sprintf(buff, "File: %s written, FileSize: %d", path, contentLength);
//log_i(buff);
if(WEBSRV_onInfo) WEBSRV_onInfo(buff);
return true;
}
//--------------------------------------------------------------------------------------------------------------
boolean WebSrv::uploadfile(fs::FS &fs,const char* path, uint32_t contentLength){ // transfer file from webbrowser to sd
size_t bytesPerTransaction = 1024;
uint8_t tBuf[bytesPerTransaction];
uint16_t av;
uint32_t len = contentLength;
boolean f_werror=false;
String str="";
File file;
if(fs.exists(path)) fs.remove(path); // Remove a previous version, otherwise data is appended the file again
file = fs.open(path, FILE_WRITE); // Open the file for writing in SD (create it, if doesn't exist)
while(cmdclient.available()){
av=cmdclient.available();
if(av>bytesPerTransaction) av=bytesPerTransaction;
if(av>len) av=len;
len -= av;
cmdclient.read(tBuf, av);
if(file.write(tBuf, av)!=av) f_werror=true; // write error?
if(len == 0) break;
}
cmdclient.readStringUntil('\n'); // read the remains, first \n
cmdclient.readStringUntil('\n'); // read the remains webkit\n
file.close();
if(f_werror) {
sprintf(buff, "File: %s write error", path);
if(WEBSRV_onInfo) WEBSRV_onInfo(buff);
return false;
}
sprintf(buff, "File: %s written, FileSize %d: ", path, contentLength);
if(WEBSRV_onInfo) WEBSRV_onInfo(buff);
return true;
}
//--------------------------------------------------------------------------------------------------------------
void WebSrv::begin(uint16_t http_port, uint16_t websocket_port) {
cmdserver.begin(http_port);
webSocketServer.begin(websocket_port);
}
//--------------------------------------------------------------------------------------------------------------
void WebSrv::stop() {
cmdclient.stop();
webSocketClient.stop();
}
//--------------------------------------------------------------------------------------------------------------
String WebSrv::getContentType(String filename){
if (filename.endsWith(".html")) return "text/html" ;
else if (filename.endsWith(".htm" )) return "text/html";
else if (filename.endsWith(".css" )) return "text/css";
else if (filename.endsWith(".txt" )) return "text/plain";
else if (filename.endsWith(".js" )) return "application/javascript";
else if (filename.endsWith(".json")) return "application/json";
else if (filename.endsWith(".svg" )) return "image/svg+xml";
else if (filename.endsWith(".ttf" )) return "application/x-font-ttf";
else if (filename.endsWith(".otf" )) return "application/x-font-opentype";
else if (filename.endsWith(".xml" )) return "text/xml";
else if (filename.endsWith(".pdf" )) return "application/pdf";
else if (filename.endsWith(".png" )) return "image/png" ;
else if (filename.endsWith(".bmp" )) return "image/bmp" ;
else if (filename.endsWith(".gif" )) return "image/gif" ;
else if (filename.endsWith(".jpg" )) return "image/jpeg" ;
else if (filename.endsWith(".ico" )) return "image/x-icon" ;
else if (filename.endsWith(".css" )) return "text/css" ;
else if (filename.endsWith(".zip" )) return "application/x-zip" ;
else if (filename.endsWith(".gz" )) return "application/x-gzip" ;
else if (filename.endsWith(".xls" )) return "application/msexcel" ;
else if (filename.endsWith(".mp3" )) return "audio/mpeg" ;
return "text/plain" ;
}
//--------------------------------------------------------------------------------------------------------------
boolean WebSrv::handlehttp() { // HTTPserver, message received
bool wswitch=true;
int16_t inx0, inx1, inx2, inx3; // Pos. of search string in currenLine
String currentLine = ""; // Build up to complete line
String ct; // contentType
uint32_t contentLength = 0; // contentLength
uint8_t count = 0;
if (!cmdclient.connected()){
log_e("cmdclient schould be connected but is not!");
return false;
}
while (wswitch==true){ // first while
if(!cmdclient.available()){
log_e("Command client schould be available but is not!");
return false;
}
currentLine = cmdclient.readStringUntil('\n');
// log_i("currLine %s", currentLine.c_str());
// If the current line is blank, you got two newline characters in a row.
// that's the end of the client HTTP request, so send a response:
if (currentLine.length() == 1) { // contains '\n' only
wswitch=false; // use second while
if (http_cmd.length()) {
if(WEBSRV_onInfo) WEBSRV_onInfo(URLdecode(http_cmd).c_str());
if(WEBSRV_onCommand) WEBSRV_onCommand(URLdecode(http_cmd), URLdecode(http_param), URLdecode(http_arg));
}
else if(http_rqfile.length()){
if(WEBSRV_onInfo) WEBSRV_onInfo(URLdecode(http_rqfile).c_str());
if(WEBSRV_onCommand) WEBSRV_onCommand(URLdecode(http_rqfile), URLdecode(http_param), URLdecode(http_arg));
}
else { // An empty "GET"?
if(WEBSRV_onInfo) WEBSRV_onInfo("Filename is: index.html");
if(WEBSRV_onCommand) WEBSRV_onCommand("index.html", URLdecode(http_param), URLdecode(http_arg));
}
currentLine = "";
http_cmd = "";
http_param = "";
http_arg = "";
http_rqfile = "";
method = HTTP_NONE;
break;
} else {
// Newline seen
inx0 = 0;
if (currentLine.startsWith("Content-Length:")) contentLength = currentLine.substring(15).toInt();
if (currentLine.startsWith("GET /")) {method = HTTP_GET; inx0 = 5;} // GET request?
if (currentLine.startsWith("POST /")){method = HTTP_PUT; inx0 = 6;} // POST request?
if (inx0 == 0) method = HTTP_NONE;
if(inx0>0){
inx1 = currentLine.indexOf("?"); // Search for 1st parameter
inx2 = currentLine.lastIndexOf("&"); // Search for 2nd parameter
inx3 = currentLine.indexOf(" HTTP");// Search for 3th parameter
if(inx1 > inx0){ // it is a command
http_cmd = currentLine.substring(inx0, inx1);//isolate the command
http_rqfile = ""; // No file
}
if((inx1>0) && (inx1+1 < inx3)){ // it is a parameter
http_param = currentLine.substring(inx1+1, inx3);//isolate the parameter
if(inx2>0){
http_arg = currentLine.substring(inx2+1, inx3);//isolate the arguments
http_param = currentLine.substring(inx1+1, inx2);//cut the parameter
}
http_rqfile = ""; // No file
}
if(inx1 < 0 && inx2 < 0){ // it is a filename
http_rqfile = currentLine.substring(inx0, inx3);
http_cmd = "";
http_param = "";
http_arg = "";
}
}
currentLine = "";
}
} //end first while
while(wswitch==false){ // second while
if(cmdclient.available()) {
//log_i("%i", cmdclient.available());
currentLine = cmdclient.readStringUntil('\n');
//log_i("currLine %s", currentLine.c_str());
contentLength -= currentLine.length();
}
else{
currentLine = "";
}
if(!currentLine.length()){
return true;
}
if((currentLine.length() == 1 && count == 0) || count >= 2){
wswitch=true; // use first while
currentLine = "";
count = 0;
break;
}
else{ // its the requestbody
if(currentLine.length() > 1){
if(WEBSRV_onRequest) WEBSRV_onRequest(currentLine, 0);
if(WEBSRV_onInfo) WEBSRV_onInfo(currentLine.c_str());
}
if(currentLine.startsWith("------")) {
count++; // WebKitFormBoundary header
contentLength -= (currentLine.length() + 2); // WebKitFormBoundary footer ist 2 chars longer
}
if(currentLine.length() == 1 && count == 1){
contentLength -= 6; // "\r\n\r\n..."
if(WEBSRV_onRequest) WEBSRV_onRequest("fileUpload", contentLength);
count++;
}
}
} // end second while
cmdclient.stop();
return true;
}
//--------------------------------------------------------------------------------------------------------------
boolean WebSrv::handleWS() { // Websocketserver, receive messages
String currentLine = ""; // Build up to complete line
if (!webSocketClient.connected()){
log_e("webSocketClient schould be connected but is not!");
hasclient_WS = false;
return false;
}
if(!hasclient_WS){
while(true){
currentLine = webSocketClient.readStringUntil('\n');
if (currentLine.length() == 1) { // contains '\n' only
if(ws_conn_request_flag){
ws_conn_request_flag = false;
printWebSocketHeader(WS_resp_Key);
hasclient_WS = true;
}
break;
}
if (currentLine.startsWith("Sec-WebSocket-Key:")) { // Websocket connection request
WS_sec_Key = currentLine.substring(18);
WS_sec_Key.trim();
WS_resp_Key = calculateWebSocketResponseKey(WS_sec_Key);
ws_conn_request_flag = true;
}
}
}
int av = webSocketClient.available();
if(av){
parseWsMessage(av);
}
return true;
}
//--------------------------------------------------------------------------------------------------------------
void WebSrv::parseWsMessage(uint32_t len){
uint8_t headerLen = 2;
uint16_t paylodLen;
uint8_t maskingKey[4];
if(len > UINT16_MAX){
log_e("Websocketmessage too long");
return;
}
webSocketClient.readBytes(buff, 1);
uint8_t fin = ((buff[0] >> 7) & 0x01); (void)fin;
uint8_t rsv1 = ((buff[0] >> 6) & 0x01); (void)rsv1;
uint8_t rsv2 = ((buff[0] >> 5) & 0x01); (void)rsv2;
uint8_t rsv3 = ((buff[0] >> 4) & 0x01); (void)rsv3;
uint8_t opcode = (buff[0] & 0x0F);
webSocketClient.readBytes(buff, 1);
uint8_t mask = ((buff[0]>>7) & 0x01);
paylodLen = (buff[0] & 0x7F);
if(paylodLen == 126){
headerLen = 4;
webSocketClient.readBytes(buff, 2);
paylodLen = buff[0] << 8;
paylodLen += buff[1];
}
(void)headerLen;
if(mask){
maskingKey[0] = webSocketClient.read();
maskingKey[1] = webSocketClient.read();
maskingKey[2] = webSocketClient.read();
maskingKey[3] = webSocketClient.read();
}
if(opcode == 0x08) { // denotes a connection close
hasclient_WS = false;
webSocketClient.stop();
return;
}
if(opcode == 0x09) { // denotes a ping
if(WEBSRV_onCommand) WEBSRV_onCommand("ping received, send pong", "", "");
if(WEBSRV_onInfo) WEBSRV_onInfo("pong received, send pong");
sendPong();
}
if(opcode == 0x0A) { // denotes a pong
if(WEBSRV_onCommand) WEBSRV_onCommand("pong received", "", "");
if(WEBSRV_onInfo) WEBSRV_onInfo("pong received");
return;
}
if(opcode == 0x01) { // denotes a text frame
int plen;
while(paylodLen){
if(paylodLen > 255){
plen = 255;
paylodLen -= webSocketClient.readBytes(buff, plen);
}
else{
plen = paylodLen;
paylodLen = 0;
webSocketClient.readBytes(buff, plen);
}
if(mask){
for(int i = 0; i < plen; i++){
buff[i] = (buff[i] ^ maskingKey[i % 4]);
}
}
buff[plen] = 0;
if(WEBSRV_onInfo) WEBSRV_onInfo(buff);
if(len < 256){ // can be a command like "mute=1"
char *ret;
ret = strchr((const char*)buff, '=');
if(ret){
*ret = 0;
// log_i("cmd=%s, para=%s", buff, ret);
if(WEBSRV_onCommand) WEBSRV_onCommand((const char*) buff, ret + 1, "");
buff[0] = 0;
return;
}
}
if(WEBSRV_onCommand) WEBSRV_onCommand((const char*) buff, "", "");
}
buff[0] = 0;
}
}
//--------------------------------------------------------------------------------------------------------------
boolean WebSrv::loop() {
cmdclient = cmdserver.available();
if (cmdclient.available()){ // Check Input from client?
if(WEBSRV_onInfo) WEBSRV_onInfo("Command client available");
return handlehttp();
}
if(!webSocketClient.connected()){
hasclient_WS = false;
}
if(!hasclient_WS) webSocketClient = webSocketServer.available();
if (webSocketClient.available()){
if(WEBSRV_onInfo) WEBSRV_onInfo("WebSocket client available");
return handleWS();
}
return false;
}
//--------------------------------------------------------------------------------------------------------------
void WebSrv::reply(const String &response, bool header){
if(header==true) {
int l= response.length();
// HTTP header
String httpheader="";
httpheader += "HTTP/1.1 200 OK\r\n";
httpheader += "Connection: close\r\n";
httpheader += "Content-type: text/html\r\n";
httpheader += "Content-Length: " + String(l, 10) + "\r\n";
httpheader += "Server: " + _Name+ "\r\n";
httpheader += "Cache-Control: max-age=3600\r\n";
httpheader += "Last-Modified: " + _Version + "\r\n\r\n";
cmdclient.print(httpheader) ; // header sent
}
cmdclient.print(response);
}
//--------------------------------------------------------------------------------------------------------------
String WebSrv::UTF8toASCII(String str){
uint16_t i=0;
String res="";
char tab[96]={
96,173,155,156, 32,157, 32, 32, 32, 32,166,174,170, 32, 32, 32,248,241,253, 32,
32,230, 32,250, 32, 32,167,175,172,171, 32,168, 32, 32, 32, 32,142,143,146,128,
32,144, 32, 32, 32, 32, 32, 32, 32,165, 32, 32, 32, 32,153, 32, 32, 32, 32, 32,
154, 32, 32,225,133,160,131, 32,132,134,145,135,138,130,136,137,141,161,140,139,
32,164,149,162,147, 32,148,246, 32,151,163,150,129, 32, 32,152
};
while(str[i]!=0){
if(str[i]==0xC2){ // compute unicode from utf8
i++;
if((str[i]>159)&&(str[i]<192)) res+=char(tab[str[i]-160]);
else res+=char(32);
}
else if(str[i]==0xC3){
i++;
if((str[i]>127)&&(str[i]<192)) res+=char(tab[str[i]-96]);
else res+=char(32);
}
else res+=str[i];
i++;
}
return res;
}
//--------------------------------------------------------------------------------------------------------------
String WebSrv::URLdecode(String str){
String hex="0123456789ABCDEF";
String res="";
uint16_t i=0;
while(str[i]!=0){
if((str[i]=='%') && isHexadecimalDigit(str[i+1]) && isHexadecimalDigit(str[i+2])){
res+=char((hex.indexOf(str[i+1])<<4) + hex.indexOf(str[i+2])); i+=3;}
else{res+=str[i]; i++;}
}
return res;
}
//--------------------------------------------------------------------------------------------------------------
String WebSrv::responseCodeToString(int code) {
switch (code) {
case 100: return F("Continue");
case 101: return F("Switching Protocols");
case 200: return F("OK");
case 201: return F("Created");
case 202: return F("Accepted");
case 203: return F("Non-Authoritative Information");
case 204: return F("No Content");
case 205: return F("Reset Content");
case 206: return F("Partial Content");
case 300: return F("Multiple Choices");
case 301: return F("Moved Permanently");
case 302: return F("Found");
case 303: return F("See Other");
case 304: return F("Not Modified");
case 305: return F("Use Proxy");
case 307: return F("Temporary Redirect");
case 400: return F("Bad Request");
case 401: return F("Unauthorized");
case 402: return F("Payment Required");
case 403: return F("Forbidden");
case 404: return F("Not Found");
case 405: return F("Method Not Allowed");
case 406: return F("Not Acceptable");
case 407: return F("Proxy Authentication Required");
case 408: return F("Request Time-out");
case 409: return F("Conflict");
case 410: return F("Gone");
case 411: return F("Length Required");
case 412: return F("Precondition Failed");
case 413: return F("Request Entity Too Large");
case 414: return F("Request-URI Too Large");
case 415: return F("Unsupported Media Type");
case 416: return F("Requested range not satisfiable");
case 417: return F("Expectation Failed");
case 500: return F("Internal Server Error");
case 501: return F("Not Implemented");
case 502: return F("Bad Gateway");
case 503: return F("Service Unavailable");
case 504: return F("Gateway Time-out");
case 505: return F("HTTP Version not supported");
default: return "";
}
}
//--------------------------------------------------------------------------------------------------------------

96
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/*
* websrv.h
*
* Created on: 09.07.2017
* updated on: 11.04.2022
* Author: Wolle
*/
#ifndef WEBSRV_H_
#define WEBSRV_H_
#include "Arduino.h"
#include "WiFi.h"
#include "SD.h"
#include "FS.h"
#include "mbedtls/sha1.h"
#include "base64.h"
extern __attribute__((weak)) void WEBSRV_onInfo(const char*);
extern __attribute__((weak)) void WEBSRV_onCommand(const String cmd, const String param, const String arg);
extern __attribute__((weak)) void WEBSRV_onRequest(const String, uint32_t contentLength);
class WebSrv
{
protected:
WiFiClient cmdclient; // An instance of the client for commands
WiFiClient webSocketClient ;
WiFiServer cmdserver;
WiFiServer webSocketServer;
private:
bool http_reponse_flag = false ; // Response required
bool ws_conn_request_flag = false; // websocket connection attempt
bool hasclient_WS = false;
String http_rqfile ; // Requested file
String http_cmd ; // Content of command
String http_param; // Content of parameter
String http_arg; // Content of argument
String _Name;
String _Version;
String contenttype;
char buff[256];
uint8_t method;
String WS_sec_Key;
String WS_resp_Key;
String WS_sec_conKey = "258EAFA5-E914-47DA-95CA-C5AB0DC85B11";
protected:
String calculateWebSocketResponseKey(String sec_WS_key);
void printWebSocketHeader(String wsRespKey);
String getContentType(String filename);
boolean handlehttp();
boolean handleWS();
void parseWsMessage(uint32_t len);
uint8_t inbyte();
String URLdecode(String str);
String UTF8toASCII(String str);
String responseCodeToString(int code);
public:
enum { HTTP_NONE = 0, HTTP_GET = 1, HTTP_PUT = 2 };
enum { Continuation_Frame = 0x00, Text_Frame = 0x01, Binary_Frame = 0x02, Connection_Close_Frame = 0x08,
Ping_Frame = 0x09, Pong_Frame = 0x0A };
WebSrv(String Name="WebSrv library", String Version="1.0");
void begin(uint16_t http_port = 80, uint16_t websocket_port = 81);
void stop();
boolean loop();
void show(const char* pagename, int16_t len=-1);
void show_not_found();
boolean streamfile(fs::FS &fs,const char* path);
boolean send(String msg, uint8_t opcode = Text_Frame);
boolean send(const char* msg, uint8_t opcode = Text_Frame);
void sendPing();
void sendPong();
boolean uploadfile(fs::FS &fs,const char* path, uint32_t contentLength);
boolean uploadB64image(fs::FS &fs,const char* path, uint32_t contentLength);
void reply(const String &response, boolean header=true);
const char* ASCIItoUTF8(const char* str);
private:
const int B64index[123] ={
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 62, 63, 62, 62, 63,
52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 0, 0, 0, 0, 0, 0,
0, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 0, 0, 0, 0, 63,
0, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51
};
};
#endif /* WEBSRV_H_ */

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# Name, Type, SubType, Offset, Size
nvs, data, nvs, 0x9000, 0x4000
phy_init, data, phy, 0xd000, 0x1000
factory, app, factory, 0x10000, 3M,
1 # Name, Type, SubType, Offset, Size
2 nvs, data, nvs, 0x9000, 0x4000
3 phy_init, data, phy, 0xd000, 0x1000
4 factory, app, factory, 0x10000, 3M,

61
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; PlatformIO Project Configuration File
;
; Build options: build flags, source filter
; Upload options: custom upload port, speed and extra flags
; Library options: dependencies, extra library storages
; Advanced options: extra scripting
;
; Please visit documentation for the other options and examples
; https://docs.platformio.org/en/latest/platforms/espressif32.html
[env:esp32dev]
platform = https://github.com/platformio/platform-espressif32.git#v5.2.0 ; Arduino V2.0.5
board = esp32dev ;chipmodel ESP32, 4M FLASH, USBtoTTL
board_build.f_cpu = 240000000L
board_build.flash_size=4MB
board_build.flash_freq=80M
board_build.spiram_mode=2
framework = arduino
monitor_speed = 115200
monitor_filters = esp32_exception_decoder
board_build.partitions = default.csv
upload_speed = 460800 ; 921600, 512000, 460800, 256000, 115200
lib_deps =
https://github.com/schreibfaul1/ESP32-audioI2S.git#2.0.6
https://github.com/yellobyte/SoapESP32.git#1.1.4
https://github.com/arduino-libraries/Arduino_JSON.git
platform_packages =
framework-arduinoespressif32 @ https://github.com/espressif/arduino-esp32.git#2.0.5
board_upload.maximum_size = 3145728
board_upload.flash_size = 4MB
board_build.flash_mode = qio
board_build.bootloader = dio
;build_flags = -DCORE_DEBUG_LEVEL=0 ; None
;build_flags = -DCORE_DEBUG_LEVEL=1 ; Error
;build_flags = -DCORE_DEBUG_LEVEL=2 ; Warn
;build_flags = -DCORE_DEBUG_LEVEL=3 ; Info
;build_flags = -DCORE_DEBUG_LEVEL=4 ; Debug
;build_flags = -DCORE_DEBUG_LEVEL=5 ; Verbose
build_flags =
; -Wall
; -Wextra
-Wdouble-promotion ; double to float warnings
-Wimplicit-fallthrough ; switch case without break
-DCORE_DEBUG_LEVEL=3
-DCONFIG_ARDUHAL_LOG_COLORS
-DBOARD_HAS_PSRAM
-DARDUINO_RUNNING_CORE=3 ; Arduino Runs On Core (setup, loop)
-DARDUINO_EVENT_RUNNING_CORE=1 ; Events Run On Core
; -DAUDIO_LOG
build_unflags =
; -DARDUINO_USB_CDC_ON_BOOT=0 ; traditional log
; -DBOARD_HAS_PSRAM

5
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# DLNA
DLNA servers are available in many home networks. Many Internet routers (e.g. Fritzbox) have an integrated DLNA service. It is also easy to set up a own DLNA server (e.g. miniDLNA on a Raspberry Pi). The SoapESP32 library https://github.com/yellobyte/SoapESP32 used here automatically recognizes the DLNA servers available in the home network. Thanks to yellobyte for this library. Since the SW is too extensive for a sketch, I have published a complete project here. Simply download the repository and unzip the DLNA folder. You can open the project with PlatformIO. Change the access data and, if necessary, the GPIOs in main.cpp. If a DLNA server was detected, its content will be displayed in the browser. If an audio file is selected, the playback process begins using the audioI2S library.
<br>
Webpage
![Webpage](https://github.com/schreibfaul1/ESP32-audioI2S/blob/master/examples/DLNA/additional_info/DLNA_web.jpg)

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/*
* index.h
*
* Created on: 13.12.2022
* Updated on: 20.12.2022
* Author: Wolle
*
* ESP32 - DLNA
*
*/
#ifndef INDEX_H_
#define INDEX_H_
#include "Arduino.h"
// file in raw data format for PROGMEM
const char index_html[] PROGMEM = R"=====(
<!DOCTYPE HTML>
<html>
<head>
<title>ESP32 - DLNA</title>
<style type="text/css"> /* optimized with csstidy */
html { /* This is the groundplane */
font-family : serif;
height : 100%;
font-size: 16px;
color : DarkSlateGray;
background-color : navy;
margin : 0;
padding : 0;
}
#content {
min-height : 540px;
min-width : 725px;
overflow : hidden;
background-color : lightskyblue;
margin : 0;
padding : 5px;
}
#tab-content1 {
margin : 20px;
}
.boxstyle {
height : 36px;
padding-top : 0;
padding-left : 15px;
padding-bottom : 0;
background-color: white;
font-size : 16px;
line-height : normal;
border-color: black;
border-style: solid;
border-width: thin;
border-radius : 5px;
}
#BODY { display:block; }
</style>
</head>
<script>
// global variables and functions
// ---- websocket section------------------------
var socket = undefined
var host = location.hostname
var tm
function ping() {
if (socket.readyState == 1) { // reayState 'open'
socket.send("ping")
console.log("send ping")
tm = setTimeout(function () {
console.log('The connection to the ESP32 is interrupted! Please reload the page!')
}, 10000)
}
}
function connect() {
socket = new WebSocket('ws://'+window.location.hostname+':81/');
socket.onopen = function () {
console.log("Websocket connected")
socket.send('DLNA_getServer')
setInterval(ping, 20000)
};
socket.onclose = function (e) {
console.log(e)
console.log('Socket is closed. Reconnect will be attempted in 1 second.', e)
socket = null
setTimeout(function () {
connect()
}, 1000)
}
socket.onerror = function (err) {
console.log(err)
}
socket.onmessage = function(event) {
var socketMsg = event.data
var n = socketMsg.indexOf('=')
var msg = ''
var val = ''
if (n >= 0) {
var msg = socketMsg.substring(0, n)
var val = socketMsg.substring(n + 1)
// console.log("para ",msg, " val ",val)
}
else {
msg = socketMsg
}
switch(msg) {
case "pong": clearTimeout(tm)
break
case "DLNA_Names": showServer(val)
break
case "Level1": show_DLNA_Content(val, 1)
break
case "Level2": show_DLNA_Content(val, 2)
break
case "Level3": show_DLNA_Content(val, 3)
break
case "Level4": show_DLNA_Content(val, 4)
break
case "Level5": show_DLNA_Content(val, 5)
break
default: console.log('unknown message', msg, val)
}
}
}
// ---- end websocket section------------------------
document.addEventListener('readystatechange', event => {
if (event.target.readyState === 'interactive') { // same as: document.addEventListener('DOMContentLoaded'...
// same as jQuery.ready
console.log('All HTML DOM elements are accessible')
// document.getElementById('dialog').style.display = 'none' // hide the div (its only a template)
}
if (event.target.readyState === 'complete') {
console.log('Now external resources are loaded too, like css,src etc... ')
connect(); // establish websocket connection
}
})
function showServer(val){
console.log(val)
var select = document.getElementById('server')
select.options.length = 0;
var server = val.split(",")
for (i = -1; i < (server.length); i++) {
opt = document.createElement('OPTION')
if(i == -1){
opt.value = ""
opt.text = "Select a DLNA Server here"
}
else{
console.log(server[i])
opt.value = server[i]
opt.text = server[i]
}
select.add(opt)
}
}
function show_DLNA_Content(val, level){
var select
if(level == 1) select = document.getElementById('level1')
if(level == 2) select = document.getElementById('level2')
if(level == 3) select = document.getElementById('level3')
if(level == 4) select = document.getElementById('level4')
if(level == 5) select = document.getElementById('level5')
content =JSON.parse(val)
//console.log(ct[1].name)
select.options.length = 0;
for (i = -1; i < (content.length); i++) {
opt = document.createElement('OPTION')
if(i == -1){
opt.value = ""
opt.text = "Select level " + level.toString()
}
else{
var n
var c
if(content[i].isDir == true){
n = content[i].name.concat('\xa0\xa0', '<DIR>'); // more than one space
c = 'D=' + content[i].id // is directory
}
else{
n = content[i].name + '\xa0\xa0' + content[i].size;
c = 'F=' + content[i].id // is file
}
opt.value = c
opt.text = n
}
select.add(opt)
}
}
function selectserver (presctrl) { // preset, select a server, root, level0
socket.send('DLNA_getContent0=' + presctrl.value)
select = document.getElementById('level1'); select.options.length = 0; // clear next level
select = document.getElementById('level2'); select.options.length = 0;
select = document.getElementById('level3'); select.options.length = 0;
select = document.getElementById('level4'); select.options.length = 0;
select = document.getElementById('level5'); select.options.length = 0;
console.log('DLNA_getContent0=' + presctrl.value)
}
function select_l1 (presctrl) { // preset, select root
socket.send('DLNA_getContent1=' + presctrl.value)
select = document.getElementById('level2'); select.options.length = 0; // clear next level
select = document.getElementById('level3'); select.options.length = 0;
select = document.getElementById('level4'); select.options.length = 0;
select = document.getElementById('level5'); select.options.length = 0;
console.log('DLNA_getContent1=' + presctrl.value)
}
function select_l2 (presctrl) { // preset, select level 1
socket.send('DLNA_getContent2=' + presctrl.value)
select = document.getElementById('level3'); select.options.length = 0;
select = document.getElementById('level4'); select.options.length = 0;
select = document.getElementById('level5'); select.options.length = 0;
console.log('DLNA_getContent2=' + presctrl.value)
}
function select_l3 (presctrl) { // preset, select level 2
socket.send('DLNA_getContent3=' + presctrl.value)
select = document.getElementById('level4'); select.options.length = 0;
select = document.getElementById('level5'); select.options.length = 0;
console.log('DLNA_getContent3=' + presctrl.value)
}
function select_l4 (presctrl) { // preset, select level 3
socket.send('DLNA_getContent4=' + presctrl.value)
select = document.getElementById('level5'); select.options.length = 0;
console.log('DLNA_getContent4=' + presctrl.value)
}
function select_l5 (presctrl) { // preset, select level 4
socket.send('DLNA_getContent5=' + presctrl.value)
console.log('DLNA_getContent5=' + presctrl.value)
}
</script>
<body id="BODY">
<!--==============================================================================================-->
<div id="content">
<div id="content1">
<div style="font-size: 50px; text-align: center; flex: 1;">
ESP32 - DLNA
</div>
<div style="display: flex;">
<div style="flex: 0 0 calc(100% - 0px);">
<select class="boxstyle" style="width: 100%;" onchange="selectserver(this)" id="server">
<option value="-1">Select a DLNA Server here</option>
</select>
<select class="boxstyle" style="width: 100%; margin-top: 5px;" onchange="select_l1(this)" id="level1">
<option value="-1"> </option>
</select>
<select class="boxstyle" style="width: 100%; margin-top: 5px;" onchange="select_l2(this)" id="level2">
<option value="-1"> </option>
</select>
<select class="boxstyle" style="width: 100%; margin-top: 5px;" onchange="select_l3(this)" id="level3">
<option value="-1"> </option>
</select>
<select class="boxstyle" style="width: 100%; margin-top: 5px;" onchange="select_l4(this)" id="level4">
<option value="-1"> </option>
</select>
<select class="boxstyle" style="width: 100%; margin-top: 5px;" onchange="select_l5(this)" id="level5">
<option value="-1"> </option>
</select>
</div>
</div>
<hr>
</div>
</div>
<!--==============================================================================================-->
</body>
</html>
)=====";
#endif /* INDEX_H_ */

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#include <Arduino.h>
#include <WiFi.h>
#include "websrv.h"
#include "index.h"
#include "Audio.h"
#include "SoapESP32.h"
#include "Arduino_JSON.h"
#include <vector>
using namespace std;
#define I2S_DOUT 25
#define I2S_BCLK 27
#define I2S_LRC 26
char SSID[] = "Wolles-FRITZBOX";
char PASS[] = "40441061073895958449";
WebSrv webSrv;
WiFiClient client;
WiFiUDP udp;
SoapESP32 soap(&client, &udp);
Audio audio;
uint numServers = 0;
int currentServer = -1;
uint32_t media_downloadPort = 0;
String media_downloadIP = "";
vector<String> names{};
//----------------------------------------------------------------------------------------------------------------------
int DLNA_setCurrentServer(String serverName){
int serverNum = -1;
for(int i = 0; i < names.size(); i++){
if(names[i] == serverName) serverNum = i;
}
currentServer = serverNum;
return serverNum;
}
void DLNA_showServer(){ // Show connection details of all discovered, usable media servers
String msg = "DLNA_Names=";
soapServer_t srv;
names.clear();
for(int i = 0; i < numServers; i++){
soap.getServerInfo(i, &srv);
Serial.printf("Server[%d]: IP address: %s port: %d name: %s -> controlURL: %s\n",
i, srv.ip.toString().c_str(), srv.port, srv.friendlyName.c_str(), srv.controlURL.c_str());
msg += srv.friendlyName;
if(i < numServers - 1) msg += ',';
names.push_back(srv.friendlyName);
}
log_i("msg %s", msg.c_str());
webSrv.send(msg);
}
void DLNA_browseServer(String objectId, uint8_t level){
JSONVar myObject;
soapObjectVect_t browseResult;
soapObject_t object;
// Here the user selects the DLNA server whose content he wants to see, level 0 is root
if(level == 0){
if(DLNA_setCurrentServer(objectId) < 0) {log_e("DLNA Server not found"); return;}
objectId = "0";
}
soap.browseServer(currentServer, objectId.c_str(), &browseResult);
if(browseResult.size() == 0){
log_i("no content!"); // then the directory is empty
return;
}
log_v("objectID: %s", objectId.c_str());
for (int i = 0; i < browseResult.size(); i++){
object = browseResult[i];
myObject[i]["name"]= object.name;
myObject[i]["isDir"] = object.isDirectory;
if(object.isDirectory){
myObject[i]["id"] = object.id;
}
else {
myObject[i]["id"] = object.uri;
media_downloadPort = object.downloadPort;
media_downloadIP = object.downloadIp.toString();
}
myObject[i]["size"] = (uint32_t)object.size;
myObject[i]["uri"] = object.id;
log_v("objectName %s", browseResult[i].name.c_str());
log_v("objectId %s", browseResult[i].artist.c_str());
}
level++;
String msg = "Level" + String(level,10) + "=" + JSON.stringify(myObject);
log_v("msg = %s", msg.c_str());
webSrv.send(msg);
browseResult.clear();
}
void DLNA_getFileItems(String uri){
soapObjectVect_t browseResult;
log_v("uri: %s", uri.c_str());
log_v("downloadIP: %s", media_downloadIP.c_str());
log_v("downloadport: %d", media_downloadPort);
String URL = "http://" + media_downloadIP + ":" + media_downloadPort + "/" + uri;
log_i("URL=%s", URL.c_str());
audio.connecttohost(URL.c_str());
}
void DLNA_showContent(String objectId, uint8_t level){
log_v("obkId=%s", objectId.c_str());
if(level == 0){
DLNA_browseServer(objectId, level);
}
if(objectId.startsWith("D=")) {
objectId = objectId.substring(2);
DLNA_browseServer(objectId, level);
}
if(objectId.startsWith("F=")) {
objectId = objectId.substring(2);
DLNA_getFileItems(objectId);
}
}
//----------------------------------------------------------------------------------------------------------------------
// S E T U P
//----------------------------------------------------------------------------------------------------------------------
void setup() {
Serial.begin(115200);
WiFi.mode(WIFI_STA);
WiFi.begin(SSID, PASS);
while (WiFi.status() != WL_CONNECTED) delay(1500);
log_i("connected, IP=%s", WiFi.localIP().toString().c_str());
webSrv.begin(80, 81); // HTTP port, WebSocket port
soap.seekServer();
numServers = soap.getServerCount();
audio.setPinout(I2S_BCLK, I2S_LRC, I2S_DOUT);
audio.setVolume(21); // 0...21
}
//----------------------------------------------------------------------------------------------------------------------
// L O O P
//----------------------------------------------------------------------------------------------------------------------
void loop() {
if(webSrv.loop()) return; // if true: ignore all other for faster response to web
audio.loop();
}
//----------------------------------------------------------------------------------------------------------------------
// E V E N T S
//----------------------------------------------------------------------------------------------------------------------
void WEBSRV_onCommand(const String cmd, const String param, const String arg){ // called from html
log_d("WS_onCmd: cmd=\"%s\", params=\"%s\", arg=\"%s\"", cmd.c_str(),param.c_str(), arg.c_str());
if(cmd == "index.html"){ webSrv.show(index_html); return;}
if(cmd == "ping"){webSrv.send("pong"); return;}
if(cmd == "favicon.ico") return;
if(cmd == "DLNA_getServer") {DLNA_showServer(); return;}
if(cmd == "DLNA_getContent0"){DLNA_showContent(param, 0); return;}
if(cmd == "DLNA_getContent1"){DLNA_showContent(param, 1); return;} // search for level 1 content
if(cmd == "DLNA_getContent2"){DLNA_showContent(param, 2); return;} // search for level 2 content
if(cmd == "DLNA_getContent3"){DLNA_showContent(param, 3); return;} // search for level 3 content
if(cmd == "DLNA_getContent4"){DLNA_showContent(param, 4); return;} // search for level 4 content
if(cmd == "DLNA_getContent5"){DLNA_showContent(param, 5); return;} // search for level 5 content
log_e("unknown HTMLcommand %s, param=%s", cmd.c_str(), param.c_str());
}
void WEBSRV_onRequest(const String request, uint32_t contentLength){
log_d("WS_onReq: %s contentLength %d", request.c_str(), contentLength);
if(request.startsWith("------")) return; // uninteresting WebKitFormBoundaryString
if(request.indexOf("form-data") > 0) return; // uninteresting Info
log_e("unknown request: %s",request.c_str());
}
void WEBSRV_onInfo(const char* info){
log_v("HTML_info: %s", info); // infos for debug
}
void audio_info(const char *info){
Serial.print("info "); Serial.println(info);
}
void audio_id3data(const char *info){ //id3 metadata
Serial.print("id3data ");Serial.println(info);
}
void audio_eof_stream(const char* info){ // The webstream comes to an end
Serial.print("end of stream: ");Serial.println(info);
}
void audio_bitrate(const char *info){
Serial.print("bitrate ");Serial.println(info);
}
void audio_lasthost(const char *info){ //stream URL played
Serial.print("lasthost ");Serial.println(info);
}

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This directory is intended for PlatformIO Test Runner and project tests.
Unit Testing is a software testing method by which individual units of
source code, sets of one or more MCU program modules together with associated
control data, usage procedures, and operating procedures, are tested to
determine whether they are fit for use. Unit testing finds problems early
in the development cycle.
More information about PlatformIO Unit Testing:
- https://docs.platformio.org/en/latest/advanced/unit-testing/index.html

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// found this sketch on https://www.mikrocontroller.net/topic/474383
// thanks to Michael U. (amiga)
#include "Arduino.h"
#include "WiFi.h"
#include "SPI.h"
#include "SD.h"
#include "FS.h"
#include "Wire.h"
#include "AC101.h" //https://github.com/schreibfaul1/AC101
// #include "ES8388.h" // https://github.com/maditnerd/es8388
#include "Audio.h" //https://github.com/schreibfaul1/ESP32-audioI2S
// SPI GPIOs
#define SD_CS 13
#define SPI_MOSI 15
#define SPI_MISO 2
#define SPI_SCK 14
// I2S GPIOs, the names refer on AC101, AS1 Audio Kit V2.2 2379
#define I2S_DSIN 25
#define I2S_BCLK 27
#define I2S_LRC 26
#define I2S_MCLK 0
#define I2S_DOUT 35
// I2S GPIOs, the names refer on ES8388, AS1 Audio Kit V2.2 3378
//#define I2S_DSIN 35
//#define I2S_BCLK 27
//#define I2S_LRC 25
//#define I2S_MCLK 0
//#define I2S_DOUT 26
// I2C GPIOs
#define IIC_CLK 32
#define IIC_DATA 33
// buttons
// #define BUTTON_2_PIN 13 // shared mit SPI_CS
#define BUTTON_3_PIN 19
#define BUTTON_4_PIN 23
#define BUTTON_5_PIN 18 // Stop
#define BUTTON_6_PIN 5 // Play
// amplifier enable
#define GPIO_PA_EN 21
//Switch S1: 1-OFF, 2-ON, 3-ON, 4-OFF, 5-OFF
String ssid = "xxxxxxxxx";
String password = "xxxxxxxxx";
static AC101 dac; // AC101
// ES8388 dac; // ES8388 (new board)
int volume = 40; // 0...100
Audio audio;
//#####################################################################
void setup()
{
Serial.begin(115200);
Serial.println("\r\nReset");
Serial.printf_P(PSTR("Free mem=%d\n"), ESP.getFreeHeap());
pinMode(SD_CS, OUTPUT);
digitalWrite(SD_CS, HIGH);
SPI.begin(SPI_SCK, SPI_MISO, SPI_MOSI);
SPI.setFrequency(1000000);
SD.begin(SD_CS);
WiFi.mode(WIFI_STA);
WiFi.begin(ssid.c_str(), password.c_str());
while (WiFi.status() != WL_CONNECTED)
{
Serial.print(".");
delay(100);
}
Serial.printf_P(PSTR("Connected\r\nRSSI: "));
Serial.print(WiFi.RSSI());
Serial.print(" IP: ");
Serial.println(WiFi.localIP());
Serial.printf("Connect to DAC codec... ");
while (not dac.begin(IIC_DATA, IIC_CLK))
{
Serial.printf("Failed!\n");
delay(1000);
}
Serial.printf("OK\n");
dac.SetVolumeSpeaker(volume);
dac.SetVolumeHeadphone(volume);
// ac.DumpRegisters();
// Enable amplifier
pinMode(GPIO_PA_EN, OUTPUT);
digitalWrite(GPIO_PA_EN, HIGH);
// set I2S_MasterClock
audio.i2s_mclk_pin_select(I2S_MCLK);
audio.setPinout(I2S_BCLK, I2S_LRC, I2S_DSIN);
audio.setVolume(10); // 0...21
audio.connecttoFS(SD, "/320k_test.mp3");
// audio.connecttoSD("/Banana Boat Song - Harry Belafonte.mp3");
// audio.connecttohost("http://mp3channels.webradio.antenne.de:80/oldies-but-goldies");
// audio.connecttohost("http://dg-rbb-http-dus-dtag-cdn.cast.addradio.de/rbb/antennebrandenburg/live/mp3/128/stream.mp3");
// audio.connecttospeech("Wenn die Hunde schlafen, kann der Wolf gut Schafe stehlen.", "de");
}
//-----------------------------------------------------------------------
void loop()
{
audio.loop();
}
// optional
void audio_info(const char *info){
Serial.print("info "); Serial.println(info);
}
void audio_id3data(const char *info){ //id3 metadata
Serial.print("id3data ");Serial.println(info);
}
void audio_eof_mp3(const char *info){ //end of file
Serial.print("eof_mp3 ");Serial.println(info);
}
void audio_showstation(const char *info){
Serial.print("station ");Serial.println(info);
}
void audio_showstreamtitle(const char *info){
Serial.print("streamtitle ");Serial.println(info);
}
void audio_bitrate(const char *info){
Serial.print("bitrate ");Serial.println(info);
}
void audio_commercial(const char *info){ //duration in sec
Serial.print("commercial ");Serial.println(info);
}
void audio_icyurl(const char *info){ //homepage
Serial.print("icyurl ");Serial.println(info);
}
void audio_lasthost(const char *info){ //stream URL played
Serial.print("lasthost ");Serial.println(info);
}
void audio_eof_speech(const char *info){
Serial.print("eof_speech ");Serial.println(info);
}

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// the pin assignment matches the Olimex ADF board
#include "Arduino.h"
#include "WiFi.h"
#include "SPI.h"
#include "SD.h"
#include "FS.h"
#include "Wire.h"
#include "ES8388.h" // https://github.com/maditnerd/es8388
#include "Audio.h" // https://github.com/schreibfaul1/ESP32-audioI2S
#define SD_CS 21
// GPIOs for SPI
#define SPI_MOSI 13
#define SPI_MISO 12
#define SPI_SCK 14
// I2S GPIOs
#define I2S_SDOUT 26
#define I2S_BCLK 5
#define I2S_LRCK 25
#define I2S_MCLK 0
// I2C GPIOs
#define IIC_CLK 23
#define IIC_DATA 18
// Amplifier enable
#define GPIO_PA_EN 19
char ssid[] = "xxxxxxxxx";
char password[] = "xxxxxxxxx";
int volume = 80; // 0...100
ES8388 es;
Audio audio;
//----------------------------------------------------------------------------------------------------------------------
void setup()
{
Serial.begin(115200);
Serial.println("\r\nReset");
Serial.printf_P(PSTR("Free mem=%d\n"), ESP.getFreeHeap());
SPI.begin(SPI_SCK, SPI_MISO, SPI_MOSI);
SPI.setFrequency(1000000);
SD.begin(SD_CS);
WiFi.mode(WIFI_STA);
WiFi.begin(ssid, password);
while(WiFi.status() != WL_CONNECTED) {
Serial.print(".");
delay(100);
}
Serial.printf_P(PSTR("Connected\r\nRSSI: "));
Serial.print(WiFi.RSSI());
Serial.print(" IP: ");
Serial.println(WiFi.localIP());
Serial.printf("Connect to ES8388 codec... ");
while (not es.begin(IIC_DATA, IIC_CLK))
{
Serial.printf("Failed!\n");
delay(1000);
}
Serial.printf("OK\n");
es.volume(ES8388::ES_MAIN, volume);
es.volume(ES8388::ES_OUT1, volume);
es.volume(ES8388::ES_OUT2, volume);
es.mute(ES8388::ES_OUT1, false);
es.mute(ES8388::ES_OUT2, false);
es.mute(ES8388::ES_MAIN, false);
// Enable amplifier
pinMode(GPIO_PA_EN, OUTPUT);
digitalWrite(GPIO_PA_EN, HIGH);
audio.setPinout(I2S_BCLK, I2S_LRCK, I2S_SDOUT);
audio.i2s_mclk_pin_select(I2S_MCLK);
audio.setVolume(21); // 0...21
audio.connecttohost("http://mp3channels.webradio.antenne.de:80/oldies-but-goldies");
// audio.connecttoFS(SD, "320k_test.mp3");
// audio.connecttospeech("Wenn die Hunde schlafen, kann der Wolf gut Schafe stehlen.", "de");
}
//----------------------------------------------------------------------------------------------------------------------
void loop()
{
audio.loop();
}
//----------------------------------------------------------------------------------------------------------------------
// optional
void audio_info(const char *info){
Serial.print("info "); Serial.println(info);
}
void audio_id3data(const char *info){ //id3 metadata
Serial.print("id3data ");Serial.println(info);
}
void audio_eof_mp3(const char *info){ //end of file
Serial.print("eof_mp3 ");Serial.println(info);
}
void audio_showstation(const char *info){
Serial.print("station ");Serial.println(info);
}
void audio_showstreaminfo(const char *info){
Serial.print("streaminfo ");Serial.println(info);
}
void audio_showstreamtitle(const char *info){
Serial.print("streamtitle ");Serial.println(info);
}
void audio_bitrate(const char *info){
Serial.print("bitrate ");Serial.println(info);
}
void audio_commercial(const char *info){ //duration in sec
Serial.print("commercial ");Serial.println(info);
}
void audio_icyurl(const char *info){ //homepage
Serial.print("icyurl ");Serial.println(info);
}
void audio_lasthost(const char *info){ //stream URL played
Serial.print("lasthost ");Serial.println(info);
}
void audio_eof_speech(const char *info){
Serial.print("eof_speech ");Serial.println(info);
}

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// Copied from https://github.com/LilyGO/TTGO-TAudio/issues/12
// Required Libraries (Download zips and add to the Arduino IDE library).
#include "Arduino.h"
#include <WM8978.h> // https://github.com/CelliesProjects/wm8978-esp32
#include <Audio.h> // https://github.com/schreibfaul1/ESP32-audioI2S
// T-Audio 1.6 WM8978 I2C pins.
#define I2C_SDA 19
#define I2C_SCL 18
// T-Audio 1.6 WM8978 I2S pins.
#define I2S_BCK 33
#define I2S_WS 25
#define I2S_DOUT 26
// T-Audio 1.6 WM8978 MCLK gpio number
#define I2S_MCLKPIN 0
Audio audio;
WM8978 dac;
void setup() {
Serial.begin(115200);
// Setup wm8978 I2C interface.
if (!dac.begin(I2C_SDA, I2C_SCL)) {
ESP_LOGE(TAG, "Error setting up dac: System halted.");
while (1) delay(100);
}
// Select I2S pins
audio.setPinout(I2S_BCK, I2S_WS, I2S_DOUT);
audio.i2s_mclk_pin_select(I2S_MCLKPIN);
// WiFi Settings here.
WiFi.begin("EnterSSIDHere", "EnterPasswordHere");
while (!WiFi.isConnected()) {
delay(10);
}
ESP_LOGI(TAG, "Connected. Starting MP3...");
// Enter your Icecast station URL here.
audio.setVolume(21);
audio.connecttohost("http://hestia2.cdnstream.com/1458_128");
// Volume control.
dac.setSPKvol(63); // Change volume here for board speaker output (Max 63).
dac.setHPvol(63, 63); // Change volume here for headphone jack left, right channel.
}
void loop() {
// Start the stream.
audio.loop();
}
// optional
void audio_info(const char *info){
Serial.print("info "); Serial.println(info);
}
void audio_id3data(const char *info){ //id3 metadata
Serial.print("id3data ");Serial.println(info);
}
void audio_eof_mp3(const char *info){ //end of file
Serial.print("eof_mp3 ");Serial.println(info);
}
void audio_showstation(const char *info){
Serial.print("station ");Serial.println(info);
}
void audio_showstreamtitle(const char *info){
Serial.print("streamtitle ");Serial.println(info);
}
void audio_bitrate(const char *info){
Serial.print("bitrate ");Serial.println(info);
}
void audio_commercial(const char *info){ //duration in sec
Serial.print("commercial ");Serial.println(info);
}
void audio_icyurl(const char *info){ //homepage
Serial.print("icyurl ");Serial.println(info);
}
void audio_lasthost(const char *info){ //stream URL played
Serial.print("lasthost ");Serial.println(info);
}
void audio_eof_speech(const char *info){
Serial.print("eof_speech ");Serial.println(info);
}

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//**********************************************************************************************************
//* audioI2S-- I2S audiodecoder for ESP32, *
//**********************************************************************************************************
//
// first release on 11/2018
// Version 3 , Jul.02/2020
//
//
// THE SOFTWARE IS PROVIDED "AS IS" FOR PRIVATE USE ONLY, IT IS NOT FOR COMMERCIAL USE IN WHOLE OR PART OR CONCEPT.
// FOR PERSONAL USE IT IS SUPPLIED WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
// WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHOR
// OR COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE
//
#include "Arduino.h"
#include "WiFiMulti.h"
#include "Audio.h"
#include "SPI.h"
#include "SD.h"
#include "FS.h"
// Digital I/O used
#define SD_CS 5
#define SPI_MOSI 23
#define SPI_MISO 19
#define SPI_SCK 18
#define I2S_DOUT 25
#define I2S_BCLK 27
#define I2S_LRC 26
Audio audio;
WiFiMulti wifiMulti;
String ssid = "xxxxx";
String password = "xxxxx";
void setup() {
pinMode(SD_CS, OUTPUT); digitalWrite(SD_CS, HIGH);
SPI.begin(SPI_SCK, SPI_MISO, SPI_MOSI);
SPI.setFrequency(1000000);
Serial.begin(115200);
SD.begin(SD_CS);
WiFi.mode(WIFI_STA);
wifiMulti.addAP(ssid.c_str(), password.c_str());
wifiMulti.run();
if(WiFi.status() != WL_CONNECTED){
WiFi.disconnect(true);
wifiMulti.run();
}
audio.setPinout(I2S_BCLK, I2S_LRC, I2S_DOUT);
audio.setVolume(12); // 0...21
// audio.connecttoFS(SD, "test.wav");
// audio.connecttohost("http://www.wdr.de/wdrlive/media/einslive.m3u");
// audio.connecttohost("http://somafm.com/wma128/missioncontrol.asx"); // asx
// audio.connecttohost("http://mp3.ffh.de/radioffh/hqlivestream.aac"); // 128k aac
audio.connecttohost("http://mp3.ffh.de/radioffh/hqlivestream.mp3"); // 128k mp3
}
void loop()
{
audio.loop();
if(Serial.available()){ // put streamURL in serial monitor
audio.stopSong();
String r=Serial.readString(); r.trim();
if(r.length()>5) audio.connecttohost(r.c_str());
log_i("free heap=%i", ESP.getFreeHeap());
}
}
// optional
void audio_info(const char *info){
Serial.print("info "); Serial.println(info);
}
void audio_id3data(const char *info){ //id3 metadata
Serial.print("id3data ");Serial.println(info);
}
void audio_eof_mp3(const char *info){ //end of file
Serial.print("eof_mp3 ");Serial.println(info);
}
void audio_showstation(const char *info){
Serial.print("station ");Serial.println(info);
}
void audio_showstreamtitle(const char *info){
Serial.print("streamtitle ");Serial.println(info);
}
void audio_bitrate(const char *info){
Serial.print("bitrate ");Serial.println(info);
}
void audio_commercial(const char *info){ //duration in sec
Serial.print("commercial ");Serial.println(info);
}
void audio_icyurl(const char *info){ //homepage
Serial.print("icyurl ");Serial.println(info);
}
void audio_lasthost(const char *info){ //stream URL played
Serial.print("lasthost ");Serial.println(info);
}

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//**********************************************************************************************************
//* audioI2S-- I2S audiodecoder for ESP32, internal DAC example *
//**********************************************************************************************************
//
// Sep.09/2022
//
// THE SOFTWARE IS PROVIDED "AS IS" FOR PRIVATE USE ONLY, IT IS NOT FOR COMMERCIAL USE IN WHOLE OR PART OR CONCEPT.
// FOR PERSONAL USE IT IS SUPPLIED WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
// WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHOR
// OR COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE
//
#include "Arduino.h"
#include "WiFiMulti.h"
#include "Audio.h"
Audio audio(true, I2S_DAC_CHANNEL_BOTH_EN);
WiFiMulti wifiMulti;
String ssid = "xxxxx";
String password = "xxxxx";
void setup() {
Serial.begin(115200);
WiFi.mode(WIFI_STA);
wifiMulti.addAP(ssid.c_str(), password.c_str());
wifiMulti.run();
if(WiFi.status() != WL_CONNECTED){
WiFi.disconnect(true);
wifiMulti.run();
}
audio.setVolume(12); // 0...21
audio.connecttohost("http://mp3.ffh.de/radioffh/hqlivestream.mp3"); // 128k mp3
}
void loop()
{
audio.loop();
}
void audio_info(const char *info){
Serial.print("info "); Serial.println(info);
}

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//**********************************************************************************************************
//* audioI2S-- I2S audiodecoder for M5Stack Core2 *
//**********************************************************************************************************
//
// first release on May.12/2021
//
//
// THE SOFTWARE IS PROVIDED "AS IS" FOR PRIVATE USE ONLY, IT IS NOT FOR COMMERCIAL USE IN WHOLE OR PART OR CONCEPT.
// FOR PERSONAL USE IT IS SUPPLIED WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
// WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHOR
// OR COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE
//
#include <M5Core2.h>
#include "Audio.h"
// Digital I/O used
#define SD_CS 4
#define SD_MOSI 23
#define SD_MISO 38
#define SD_SCK 18
#define I2S_DOUT 2
#define I2S_BCLK 12
#define I2S_LRC 0
Audio audio;
String ssid = "xxxxxx";
String password = "xxxxxx";
void setup() {
M5.begin(true, true, true, true);
M5.Axp.SetSpkEnable(true);
M5.Lcd.fillScreen(BLACK);
M5.Lcd.setTextColor(WHITE);
M5.Lcd.setTextSize(2);
pinMode(SD_CS, OUTPUT);
digitalWrite(SD_CS, HIGH);
SPI.begin(SD_SCK, SD_MISO, SD_MOSI);
SPI.setFrequency(1000000);
SD.begin(SD_CS);
audio.setPinout(I2S_BCLK, I2S_LRC, I2S_DOUT);
audio.setVolume(15); // 0...21
WiFi.mode(WIFI_STA);
WiFi.begin(ssid.c_str(), password.c_str());
while (!WiFi.isConnected()) {
delay(10);
}
ESP_LOGI(TAG, "Connected");
ESP_LOGI(TAG, "Starting MP3...\n");
// audio.connecttoFS(SD, "/320k_test.mp3");
// audio.connecttoFS(SD, "test.wav");
audio.connecttohost("http://air.ofr.fm:8008/jazz/mp3/128");
// audio.connecttospeech("Миска вареників з картоплею та шкварками, змащених салом!", "uk-UA");
}
void loop() {
audio.loop();
if(Serial.available()){ // put streamURL in serial monitor
audio.stopSong();
String r=Serial.readString();
r.trim();
if(r.length()>5) audio.connecttohost(r.c_str());
log_i("free heap=%i", ESP.getFreeHeap());
}
}
// optional
void audio_info(const char *info){
Serial.print("info "); Serial.println(info);
}
void audio_id3data(const char *info){ //id3 metadata
Serial.print("id3data ");Serial.println(info);
}
void audio_eof_mp3(const char *info){ //end of file
Serial.print("eof_mp3 ");Serial.println(info);
}
void audio_showstation(const char *info){
Serial.print("station ");Serial.println(info);
}
void audio_showstreamtitle(const char *info){
Serial.print("streamtitle ");Serial.println(info);
}
void audio_bitrate(const char *info){
Serial.print("bitrate ");Serial.println(info);
}
void audio_commercial(const char *info){ //duration in sec
Serial.print("commercial ");Serial.println(info);
}
void audio_icyurl(const char *info){ //homepage
Serial.print("icyurl ");Serial.println(info);
}
void audio_lasthost(const char *info){ //stream URL played
Serial.print("lasthost ");Serial.println(info);
}
void audio_eof_speech(const char *info){
Serial.print("eof_speech ");Serial.println(info);
}

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// M5Stack Node support
// thanks to Cellie - issue #35 25.Apr.2020
// M5Stack board with Node base also need a MCLK signal on GPIO0.
#include <WM8978.h> /* https://github.com/CelliesProjects/wm8978-esp32 */
#include <Audio.h> /* https://github.com/schreibfaul1/ESP32-audioI2S */
/* M5Stack Node WM8978 I2C pins */
#define I2C_SDA 21
#define I2C_SCL 22
/* M5Stack Node I2S pins */
#define I2S_BCK 5
#define I2S_WS 13
#define I2S_DOUT 2
#define I2S_DIN 34
/* M5Stack WM8978 MCLK gpio number */
#define I2S_MCLKPIN 0
WM8978 dac;
Audio audio;
void setup() {
/* Setup wm8978 I2C interface */
if (!dac.begin(I2C_SDA, I2C_SCL)) {
log_e("Error setting up dac. System halted");
while (1) delay(100);
}
dac.setSPKvol(40); /* max 63 */
dac.setHPvol(32, 32);
/* Setup wm8978 I2S interface */
audio.setPinout(I2S_BCK, I2S_WS, I2S_DOUT, I2S_DIN, I2S_MCLKPIN);
WiFi.begin("xxx", "xxx");
while (!WiFi.isConnected()) {
delay(10);
}
log_i("Connected\nStarting MP3...\n");
audio.connecttohost("http://icecast.omroep.nl/3fm-bb-mp3");
}
void loop() {
audio.loop();
}

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//**********************************************************************************************************
//* audioI2S-- I2S audiodecoder for M5StickC Plus and SPK HAT *
//**********************************************************************************************************
//
// first release on May.12/2021
//
//
// THE SOFTWARE IS PROVIDED "AS IS" FOR PRIVATE USE ONLY, IT IS NOT FOR COMMERCIAL USE IN WHOLE OR PART OR CONCEPT.
// FOR PERSONAL USE IT IS SUPPLIED WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
// WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHOR
// OR COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE
//
#include <M5StickCPlus.h>
#include "Audio.h"
Audio audio = Audio(true);
String ssid = "xxxxxxxx";
String password = "xxxxxxxx";
void setup() {
M5.begin(false); //Lcd disabled to reduce noise
M5.Axp.ScreenBreath(1); //Lower Lcd backlight
pinMode(36, INPUT);
gpio_pulldown_dis(GPIO_NUM_25);
gpio_pullup_dis(GPIO_NUM_25);
M5.Beep.tone(44100); //Built-in buzzer tone
M5.Beep.end(); //disabled
audio.setVolume(15); // 0...21
WiFi.mode(WIFI_STA);
WiFi.begin(ssid.c_str(), password.c_str());
while (!WiFi.isConnected()) {
delay(10);
}
ESP_LOGI(TAG, "Connected");
ESP_LOGI(TAG, "Starting MP3...\n");
audio.connecttohost("http://air.ofr.fm:8008/jazz/mp3/128");
// audio.connecttospeech("Миска вареників з картоплею та шкварками, змащених салом!", "uk-UA");
}
void loop() {
audio.loop();
if(Serial.available()){ // put streamURL in serial monitor
audio.stopSong();
String r=Serial.readString();
r.trim();
if(r.length()>5) audio.connecttohost(r.c_str());
log_i("free heap=%i", ESP.getFreeHeap());
}
}
// optional
void audio_info(const char *info){
Serial.print("info "); Serial.println(info);
}
void audio_id3data(const char *info){ //id3 metadata
Serial.print("id3data ");Serial.println(info);
}
void audio_eof_mp3(const char *info){ //end of file
Serial.print("eof_mp3 ");Serial.println(info);
}
void audio_showstation(const char *info){
Serial.print("station ");Serial.println(info);
}
void audio_showstreamtitle(const char *info){
Serial.print("streamtitle ");Serial.println(info);
}
void audio_bitrate(const char *info){
Serial.print("bitrate ");Serial.println(info);
}
void audio_commercial(const char *info){ //duration in sec
Serial.print("commercial ");Serial.println(info);
}
void audio_icyurl(const char *info){ //homepage
Serial.print("icyurl ");Serial.println(info);
}
void audio_lasthost(const char *info){ //stream URL played
Serial.print("lasthost ");Serial.println(info);
}
void audio_eof_speech(const char *info){
Serial.print("eof_speech ");Serial.println(info);
}

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#include <Arduino.h>
#include <Preferences.h>
#include <SPI.h>
#include <WiFi.h>
#include "tft.h" //see my repository at github "https://github.com/schreibfaul1/ESP32-TFT-Library-ILI9486"
#include "Audio.h" //see my repository at github "https://github.com/schreibfaul1/ESP32-audioI2S"
#define TFT_CS 22
#define TFT_DC 21
#define TP_CS 14 //16
#define TP_IRQ 39
#define SPI_MOSI 23
#define SPI_MISO 19
#define SPI_SCK 18
#define I2S_DOUT 25
#define I2S_BCLK 27
#define I2S_LRC 26
Preferences pref;
TFT tft;
TP tp(TP_CS, TP_IRQ);
Audio audio;
String ssid = "*****";
String password = "*****";
String stations[] ={
"0n-80s.radionetz.de:8000/0n-70s.mp3",
"mediaserv30.live-streams.nl:8000/stream",
"www.surfmusic.de/m3u/100-5-das-hitradio,4529.m3u",
"stream.1a-webradio.de/deutsch/mp3-128/vtuner-1a",
"mp3.ffh.de/radioffh/hqlivestream.aac", // 128k aac
"www.antenne.de/webradio/antenne.m3u",
"listen.rusongs.ru/ru-mp3-128",
"edge.audio.3qsdn.com/senderkw-mp3",
"https://stream.srg-ssr.ch/rsp/aacp_48.asx", // SWISS POP
};
//some global variables
uint8_t max_volume = 21;
uint8_t max_stations = 0; //will be set later
uint8_t cur_station = 0; //current station(nr), will be set later
uint8_t cur_volume = 0; //will be set from stored preferences
int8_t cur_btn =-1; //current button (, -1 means idle)
enum action{VOLUME_UP=0, VOLUME_DOWN=1, STATION_UP=2, STATION_DOWN=3};
enum staus {RELEASED=0, PRESSED=1};
struct _btns{
uint16_t x; //PosX
uint16_t y; //PosY
uint16_t w; //Width
uint16_t h; //Hight
uint8_t a; //Action
uint8_t s; //Status
};
typedef _btns btns;
btns btn[4];
//**************************************************************************************************
// G U I *
//**************************************************************************************************
void draw_button(btns b){
uint16_t color=TFT_BLACK;
uint8_t r=4, o=r*3;
if(b.s==RELEASED) color=TFT_GOLD;
if(b.s==PRESSED) color=TFT_DEEPSKYBLUE;
tft.drawRoundRect(b.x, b.y, b.w, b.h, r, color);
switch(b.a){
case VOLUME_UP:
tft.fillTriangle(b.x+b.w/2, b.y+o, b.x+o, b.y+b.h-o, b.x+b.w-o, b.y+b.h-o, color); break;
case VOLUME_DOWN:
tft.fillTriangle(b.x+o, b.y+o, b.x+b.w/2, b.y+b.h-o, b.x+b.w-o, b.y+o, color); break;
case STATION_UP:
tft.fillTriangle(b.x+o, b.y+o, b.x+o, b.y+b.h-o, b.x+b.w-o, b.y+b.h/2, color); break;
case STATION_DOWN:
tft.fillTriangle(b.x+b.w-o, b.y+o, b.x+o, b.y+b.h/2, b.x+b.w-o, b.y+b.h-o, color); break;
}
}
void write_stationNr(uint8_t nr){
tft.fillRect(80, 250, 80, 60, TFT_BLACK);
String snr = String(nr);
if(snr.length()<2) snr = "0"+snr;
tft.setCursor(98, 255);
tft.setFont(Times_New_Roman66x53);
tft.setTextColor(TFT_YELLOW);
tft.print(snr);
}
void write_volume(uint8_t vol){
tft.fillRect(320, 250, 80, 60, TFT_BLACK);
String svol = String(vol);
if(svol.length()<2) svol = "0"+svol;
tft.setCursor(338, 255);
tft.setFont(Times_New_Roman66x53);
tft.setTextColor(TFT_YELLOW);
tft.print(svol);
}
void write_stationName(String sName){
tft.fillRect(0, 0, 480, 100, TFT_BLACK);
tft.setFont(Times_New_Roman43x35);
tft.setTextColor(TFT_CORNSILK);
tft.setCursor(20, 20);
tft.print(sName);
}
void write_streamTitle(String sTitle){
tft.fillRect(0, 100, 480, 150, TFT_BLACK);
tft.setFont(Times_New_Roman43x35);
tft.setTextColor(TFT_LIGHTBLUE);
tft.setCursor(20, 100);
int l = tft.writeText((const uint8_t*) sTitle.c_str(), 100 + 150); // do not write under y=250
if(l < sTitle.length()){
// sTitle has been shortened, is too long for the display
}
}
//**************************************************************************************************
// S E T U P *
//**************************************************************************************************
void setup() {
btn[0].x= 20; btn[0].y=250; btn[0].w=60; btn[0].h=60; btn[0].a=STATION_DOWN; btn[0].s=RELEASED;
btn[1].x=160; btn[1].y=250; btn[1].w=60; btn[1].h=60; btn[1].a=STATION_UP; btn[1].s=RELEASED;
btn[2].x=260; btn[2].y=250; btn[2].w=60; btn[2].h=60; btn[2].a=VOLUME_UP; btn[2].s=RELEASED;
btn[3].x=400; btn[3].y=250; btn[3].w=60; btn[3].h=60; btn[3].a=VOLUME_DOWN; btn[3].s=RELEASED;
max_stations= sizeof(stations)/sizeof(stations[0]); log_i("max stations %i", max_stations);
Serial.begin(115200);
SPI.begin(SPI_SCK, SPI_MISO, SPI_MOSI);
pref.begin("WebRadio", false); // instance of preferences for defaults (station, volume ...)
if(pref.getShort("volume", 1000) == 1000){ // if that: pref was never been initialized
pref.putShort("volume", 10);
pref.putShort("station", 0);
}
else{ // get the stored values
cur_station = pref.getShort("station");
cur_volume = pref.getShort("volume");
}
WiFi.begin(ssid.c_str(), password.c_str());
while (WiFi.status() != WL_CONNECTED){
delay(2000);
Serial.print(".");
}
log_i("Connect to %s", WiFi.SSID().c_str());
tft.begin(TFT_CS, TFT_DC, SPI_MOSI, SPI_MISO, SPI_SCK);
tft.setRotation(3);
tp.setRotation(3);
tft.setFont(Times_New_Roman43x35);
tft.fillScreen(TFT_BLACK);
audio.setPinout(I2S_BCLK, I2S_LRC, I2S_DOUT);
audio.setVolume(cur_volume); // 0...21
audio.connecttohost(stations[cur_station].c_str());
for(uint8_t i=0; i<(sizeof(btn)/sizeof(*btn)); i++) draw_button(btn[i]);
write_volume(cur_volume);
write_stationNr(cur_station);
}
//**************************************************************************************************
// L O O P *
//**************************************************************************************************
void loop()
{
audio.loop();
tp.loop();
}
//**************************************************************************************************
// E V E N T S *
//**************************************************************************************************
void audio_info(const char *info){
Serial.print("audio_info: "); Serial.println(info);
}
void audio_showstation(const char *info){
write_stationName(String(info));
}
void audio_showstreamtitle(const char *info){
String sinfo=String(info);
sinfo.replace("|", "\n");
write_streamTitle(sinfo);
}
void tp_pressed(uint16_t x, uint16_t y){
for(uint8_t i=0; i<(sizeof(btn)/sizeof(*btn)); i++){
if(x>btn[i].x && (x<btn[i].x+btn[i].w)){
if(y>btn[i].y && (y<btn[i].y+btn[i].h)){
cur_btn=i;
btn[cur_btn].s=PRESSED;
draw_button(btn[cur_btn]);
}
}
}
}
void tp_released(){
if(cur_btn !=-1){
btn[cur_btn].s=RELEASED;
draw_button(btn[cur_btn]);
switch(btn[cur_btn].a){
case VOLUME_UP: if(cur_volume<max_volume){
cur_volume++;
write_volume(cur_volume);
audio.setVolume(cur_volume);
pref.putShort("volume", cur_volume);} // store the current volume in nvs
break;
case VOLUME_DOWN: if(cur_volume>0){
cur_volume-- ;
write_volume(cur_volume);
audio.setVolume(cur_volume);
pref.putShort("volume", cur_volume);} // store the current volume in nvs
break;
case STATION_UP: if(cur_station<max_stations-1){
cur_station++;
write_stationNr(cur_station);
tft.fillRect(0, 0, 480, 250, TFT_BLACK);
audio.connecttohost(stations[cur_station].c_str());
pref.putShort("station", cur_station);} // store the current station in nvs
break;
case STATION_DOWN:if(cur_station>0){
cur_station--;
write_stationNr(cur_station);
tft.fillRect(0, 0, 480, 250, TFT_BLACK);
audio.connecttohost(stations[cur_station].c_str());
pref.putShort("station", cur_station);} // store the current station in nvs
break;
}
}
cur_btn=-1;
}

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// this is the same example as Webradio_I2S.ino only with an IR remote control
#include <Arduino.h>
#include <Preferences.h>
#include <SPI.h>
#include <WiFi.h>
#include "tft.h" //see my repository at github "https://github.com/schreibfaul1/ESP32-TFT-Library-ILI9486"
#include "Audio.h" //see my repository at github "https://github.com/schreibfaul1/ESP32-audioI2S"
#include "IR.h" //see my repository at github "ESP32-IR-Remote-Control"
#define TFT_CS 22
#define TFT_DC 21
#define TP_CS 16
#define TP_IRQ 39
#define SPI_MOSI 23
#define SPI_MISO 19
#define SPI_SCK 18
#define I2S_DOUT 25
#define I2S_BCLK 27
#define I2S_LRC 26
#define IR_PIN 34
Preferences pref;
TFT tft; // @suppress("Abstract class cannot be instantiated")
TP tp(TP_CS, TP_IRQ);
Audio audio;
IR ir(IR_PIN); // do not change the objectname, it must be "ir"
String ssid = "*********";
String password = "*********";
String stations[] ={
"0n-80s.radionetz.de:8000/0n-70s.mp3",
"mediaserv30.live-streams.nl:8000/stream",
"www.surfmusic.de/m3u/100-5-das-hitradio,4529.m3u",
"stream.1a-webradio.de/deutsch/mp3-128/vtuner-1a",
"mp3.ffh.de/radioffh/hqlivestream.aac", // 128k aac
"www.antenne.de/webradio/antenne.m3u",
"listen.rusongs.ru/ru-mp3-128",
"edge.audio.3qsdn.com/senderkw-mp3",
"macslons-irish-pub-radio.com/media.asx",
};
//some global variables
uint8_t max_volume = 21;
uint8_t max_stations = 0; //will be set later
uint8_t cur_station = 0; //current station(nr), will be set later
uint8_t cur_volume = 0; //will be set from stored preferences
int8_t cur_btn =-1; //current button (, -1 means idle)
enum action{VOLUME_UP=0, VOLUME_DOWN=1, STATION_UP=2, STATION_DOWN=3};
enum staus {RELEASED=0, PRESSED=1};
struct _btns{
uint16_t x; //PosX
uint16_t y; //PosY
uint16_t w; //Width
uint16_t h; //Hight
uint8_t a; //Action
uint8_t s; //Status
};
typedef _btns btns;
btns btn[4];
//**************************************************************************************************
// G U I *
//**************************************************************************************************
void draw_button(btns b){
uint16_t color=TFT_BLACK;
uint8_t r=4, o=r*3;
if(b.s==RELEASED) color=TFT_GOLD;
if(b.s==PRESSED) color=TFT_DEEPSKYBLUE;
tft.drawRoundRect(b.x, b.y, b.w, b.h, r, color);
switch(b.a){
case VOLUME_UP:
tft.fillTriangle(b.x+b.w/2, b.y+o, b.x+o, b.y+b.h-o, b.x+b.w-o, b.y+b.h-o, color); break;
case VOLUME_DOWN:
tft.fillTriangle(b.x+o, b.y+o, b.x+b.w/2, b.y+b.h-o, b.x+b.w-o, b.y+o, color); break;
case STATION_UP:
tft.fillTriangle(b.x+o, b.y+o, b.x+o, b.y+b.h-o, b.x+b.w-o, b.y+b.h/2, color); break;
case STATION_DOWN:
tft.fillTriangle(b.x+b.w-o, b.y+o, b.x+o, b.y+b.h/2, b.x+b.w-o, b.y+b.h-o, color); break;
}
}
void write_stationNr(uint8_t nr){
tft.fillRect(80, 250, 80, 60, TFT_BLACK);
String snr = String(nr);
if(snr.length()<2) snr = "0"+snr;
tft.setCursor(98, 255);
tft.setFont(Times_New_Roman66x53);
tft.setTextColor(TFT_YELLOW);
tft.print(snr);
}
void write_volume(uint8_t vol){
tft.fillRect(320, 250, 80, 60, TFT_BLACK);
String svol = String(vol);
if(svol.length()<2) svol = "0"+svol;
tft.setCursor(338, 255);
tft.setFont(Times_New_Roman66x53);
tft.setTextColor(TFT_YELLOW);
tft.print(svol);
}
void write_stationName(String sName){
tft.fillRect(0, 0, 480, 100, TFT_BLACK);
tft.setFont(Times_New_Roman43x35);
tft.setTextColor(TFT_CORNSILK);
tft.setCursor(20, 20);
tft.print(sName);
}
void write_streamTitle(String sTitle){
tft.fillRect(0, 100, 480, 150, TFT_BLACK);
tft.setFont(Times_New_Roman43x35);
tft.setTextColor(TFT_LIGHTBLUE);
tft.setCursor(20, 100);
tft.print(sTitle);
}
void volume_up(){
if(cur_volume < max_volume){
cur_volume++;
write_volume(cur_volume);
audio.setVolume(cur_volume);
pref.putShort("volume", cur_volume);} // store the current volume in nvs
}
void volume_down(){
if(cur_volume>0){
cur_volume-- ;
write_volume(cur_volume);
audio.setVolume(cur_volume);
pref.putShort("volume", cur_volume);} // store the current volume in nvs
}
void station_up(){
if(cur_station < max_stations-1){
cur_station++;
write_stationNr(cur_station);
tft.fillRect(0, 0, 480, 250, TFT_BLACK);
audio.connecttohost(stations[cur_station].c_str());
pref.putShort("station", cur_station);} // store the current station in nvs
}
void station_down(){
if(cur_station > 0){
cur_station--;
write_stationNr(cur_station);
tft.fillRect(0, 0, 480, 250, TFT_BLACK);
audio.connecttohost(stations[cur_station].c_str());
pref.putShort("station", cur_station);} // store the current station in nvs
}
//**************************************************************************************************
// S E T U P *
//**************************************************************************************************
void setup() {
btn[0].x= 20; btn[0].y=250; btn[0].w=60; btn[0].h=60; btn[0].a=STATION_DOWN; btn[0].s=RELEASED;
btn[1].x=160; btn[1].y=250; btn[1].w=60; btn[1].h=60; btn[1].a=STATION_UP; btn[1].s=RELEASED;
btn[2].x=260; btn[2].y=250; btn[2].w=60; btn[2].h=60; btn[2].a=VOLUME_UP; btn[2].s=RELEASED;
btn[3].x=400; btn[3].y=250; btn[3].w=60; btn[3].h=60; btn[3].a=VOLUME_DOWN; btn[3].s=RELEASED;
max_stations= sizeof(stations)/sizeof(stations[0]); log_i("max stations %i", max_stations);
Serial.begin(115200);
SPI.begin(SPI_SCK, SPI_MISO, SPI_MOSI);
pref.begin("WebRadio", false); // instance of preferences for defaults (station, volume ...)
if(pref.getShort("volume", 1000) == 1000){ // if that: pref was never been initialized
pref.putShort("volume", 10);
pref.putShort("station", 0);
}
else{ // get the stored values
cur_station = pref.getShort("station");
cur_volume = pref.getShort("volume");
}
WiFi.disconnect();
WiFi.begin(ssid.c_str(), password.c_str());
while (WiFi.status() != WL_CONNECTED) {delay(1500); Serial.print(".");}
log_i("Connected to %s", WiFi.SSID().c_str());
tft.begin(TFT_CS, TFT_DC, SPI_MOSI, SPI_MISO, SPI_SCK);
tft.setFrequency(20000000);
tft.setRotation(3);
tp.setRotation(3);
tft.setFont(Times_New_Roman43x35);
tft.fillScreen(TFT_BLACK);
ir.begin(); // Init InfraredDecoder
audio.setPinout(I2S_BCLK, I2S_LRC, I2S_DOUT);
audio.setVolume(cur_volume); // 0...21
audio.connecttohost(stations[cur_station].c_str());
for(uint8_t i=0; i<(sizeof(btn)/sizeof(*btn)); i++) draw_button(btn[i]);
write_volume(cur_volume);
write_stationNr(cur_station);
}
//**************************************************************************************************
// L O O P *
//**************************************************************************************************
void loop()
{
audio.loop();
tp.loop();
ir.loop();
}
//**************************************************************************************************
// E V E N T S *
//**************************************************************************************************
void audio_info(const char *info){
Serial.print("audio_info: "); Serial.println(info);
}
void audio_showstation(const char *info){
write_stationName(String(info));
}
void audio_showstreamtitle(const char *info){
String sinfo=String(info);
sinfo.replace("|", "\n");
write_streamTitle(sinfo);
}
void tp_pressed(uint16_t x, uint16_t y){
for(uint8_t i=0; i<(sizeof(btn)/sizeof(*btn)); i++){
if(x>btn[i].x && (x<btn[i].x+btn[i].w)){
if(y>btn[i].y && (y<btn[i].y+btn[i].h)){
cur_btn=i;
btn[cur_btn].s=PRESSED;
draw_button(btn[cur_btn]);
}
}
}
}
void tp_released(){
if(cur_btn !=-1){
btn[cur_btn].s=RELEASED;
draw_button(btn[cur_btn]);
switch(btn[cur_btn].a){
case VOLUME_UP: volume_up(); break;
case VOLUME_DOWN: volume_down(); break;
case STATION_UP: station_up(); break;
case STATION_DOWN: station_down(); break;
}
}
cur_btn=-1;
}
// Events from IR Library
void ir_res(uint32_t res){
if(res < max_stations){
cur_station = res;
write_stationNr(cur_station);
tft.fillRect(0, 0, 480, 250, TFT_BLACK);
audio.connecttohost(stations[cur_station].c_str());
pref.putShort("station", cur_station);} // store the current station in nvs
else{
tft.fillRect(0, 0, 480, 250, TFT_BLACK);
audio.connecttohost(stations[cur_station].c_str());
}
}
void ir_number(const char* num){
tft.fillRect(0, 0, 480, 250, TFT_BLACK);
tft.setTextSize(7);
tft.setTextColor(TFT_CORNSILK);
tft.setCursor(50, 70);
tft.print(num);
}
void ir_key(const char* key){
switch(key[0]){
case 'k': break; // OK
case 'r': volume_up(); break; // right
case 'l': volume_down(); break; // left
case 'u': station_up(); break; // up
case 'd': station_down(); break; // down
case '#': break; // #
case '*': break; // *
default: break;
}
}

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# Synchronised lyrics/text
Synchronized Lyrics or also called 'Lyrics3' is a format for storing lyrics in the ID3 metadata of audio files such as MP3s. The synchronized texts are saved in a special ID3 tag called **SYLT**.
Unlike plain lyrics, synced lyrics can contain not only the lyrics of the song, but also information about when each section of lyrics should be displayed. This information is stored in the form of timestamps that indicate when each piece of text should begin and end.
Once the synced lyrics are stored in the ID3 metadata, they can be viewed by a compatible audio player. The audio player reads the SYLT tags and displays the lyrics of the song in real time while the song is playing. This allows the listener to follow the lyrics of the song in real time and sing along.
@moononournation had the idea of ​​reading the SYLT tag with the audioI2S library, and he also wrote the necessary source code.
The example shown here reads an mp3 file containing the SYLT tag, plays the mp3 file and displays the lyrics according to the timestamps in the serial terminal.

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#include "Arduino.h"
#include "Audio.h"
#include "SD_MMC.h"
#include "Ticker.h"
Audio audio;
Ticker ticker;
char *lyricsText;
size_t lyricsTextSize = 0;
uint16_t lyricsPtr = 0;
uint32_t timeStamp = 0;
uint32_t ms = 0;
char chbuf[512];
#define I2S_LRC 26
#define I2S_DOUT 25
#define I2S_BCLK 27
#define I2S_MCLK 0
#define SD_MMC_D0 2
#define SD_MMC_CLK 14
#define SD_MMC_CMD 15
size_t bigEndian(char* base, uint8_t numBytes, uint8_t shiftLeft = 8){
uint64_t result = 0;
if(numBytes < 1 || numBytes > 8) return 0;
for (int i = 0; i < numBytes; i++) {
result += *(base + i) << (numBytes -i - 1) * shiftLeft;
}
if(result > SIZE_MAX) {log_e("range overflow"); result = 0;} // overflow
return (size_t)result;
}
void tckr(){ // caller every 100ms
if(audio.isRunning()){
ms += 100;
if(ms >= timeStamp){
Serial.print(chbuf);
strcpy(chbuf, lyricsText + lyricsPtr); lyricsPtr += strlen(chbuf) + 1; // strlen + '\0'
timeStamp = bigEndian(lyricsText + lyricsPtr, 4); lyricsPtr += 4;
}
}
else{
if(lyricsText) {free(lyricsText); lyricsText = NULL; lyricsTextSize = 0;}
ticker.detach();
}
}
void setup() {
pinMode(SD_MMC_D0, INPUT_PULLUP);
Serial.begin(115200);
if(!SD_MMC.begin( "/sdcard", true, false, 20000)){
Serial.println("Card Mount Failed");
return;
}
audio.setPinout(I2S_BCLK, I2S_LRC, I2S_DOUT, -1, -1);
audio.setVolume(10); // 0...21
audio.connecttoFS(SD_MMC, "/Little London Girl(lyrics).mp3");
}
void loop(){
audio.loop();
}
// optional
void audio_info(const char *info){
Serial.print("info "); Serial.println(info);
}
void audio_id3data(const char *info){ //id3 metadata
// if(strncmp(info, "Year: ", 6) == 0) Serial.println(info + 6);
Serial.print("id3data ");Serial.println(info);
}
void audio_eof_mp3(const char *info){ //end of file
Serial.print("eof_mp3 ");Serial.println(info);
}
void audio_id3lyrics(File &file, const size_t pos, const size_t size) {
Serial.printf("\naudio_id3lyrics, pos: %d, size: %d\n", pos, size);
lyricsText = (char *)malloc(size);
lyricsTextSize = size;
file.seek(pos);
file.read((uint8_t *)lyricsText, size);
Serial.printf("text encoding: %i\n", lyricsText[0]); // 0: ASCII, 3: UTF-8
char lang[14]; memcpy(lang, (const char*)lyricsText + 1, 3); lang[3] = '\0'; Serial.printf("language: %s\n", lang);
Serial.printf("time stamp format: %i\n", lyricsText[4]);
Serial.printf("content type: %i\n", lyricsText[5]);
Serial.printf("content descriptor: %i\n\n", lyricsText[6]);
lyricsPtr = 7;
strcpy(chbuf, lyricsText + lyricsPtr); lyricsPtr += strlen(chbuf) + 1; // strlen + '\0'
timeStamp = bigEndian(lyricsText + lyricsPtr, 4);
ticker.attach(0.1, tckr); lyricsPtr += 4;
}

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#include "Arduino.h"
#include "Audio.h"
#include "SD.h"
#include "SPI.h"
#include "FS.h"
#include "Ticker.h"
// Digital I/O used
#define SD_CS 5
#define SPI_MOSI 23
#define SPI_MISO 19
#define SPI_SCK 18
#define I2S_DOUT 25
#define I2S_BCLK 27
#define I2S_LRC 26
Audio audio;
Ticker ticker;
struct tm timeinfo;
time_t now;
uint8_t hour = 6;
uint8_t minute = 59;
uint8_t sec = 45;
bool f_time = false;
int8_t timefile = -1;
char chbuf[100];
void tckr1s(){
sec++;
if(sec > 59) {sec = 0; minute++;}
if(minute > 59){minute = 0; hour++;}
if(hour > 23) {hour = 0;}
if(minute == 59 && sec == 50) f_time = true; // flag will be set 10s before full hour
Serial.printf("%02d:%02d:%02d\n", hour, minute, sec);
}
void setup() {
Serial.begin(115200);
SPI.begin(SPI_SCK, SPI_MISO, SPI_MOSI);
SD.begin(SD_CS);
audio.setPinout(I2S_BCLK, I2S_LRC, I2S_DOUT);
audio.setVolume(10); // 0...21
ticker.attach(1, tckr1s);
}
void loop(){
audio.loop();
if(f_time == true){
f_time = false;
timefile = 3;
uint8_t next_hour = hour + 1;
if(next_hour == 25) next_hour = 1;
sprintf(chbuf, "/voice_time/%03d.mp3", next_hour);
audio.connecttoFS(SD, chbuf);
}
}
void audio_eof_mp3(const char *info){ //end of file
//Serial.printf("file :%s\n", info);
if(timefile>0){
if(timefile==1){audio.connecttoFS(SD, "/voice_time/080.mp3"); timefile--;} // stroke
if(timefile==2){audio.connecttoFS(SD, "/voice_time/200.mp3"); timefile--;} // precisely
if(timefile==3){audio.connecttoFS(SD, "/voice_time/O'clock.mp3"); timefile--;}
}
}

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#include "Arduino.h"
#include "Audio.h"
#include "SD_MMC.h"
#include "FS.h"
#include <vector>
#define I2S_LRC 26
#define I2S_DOUT 25
#define I2S_BCLK 27
#define SD_MMC_D0 2
#define SD_MMC_CLK 14
#define SD_MMC_CMD 15
void listDir(fs::FS &fs, const char * dirname, uint8_t levels); //proto
std::vector<char*> v_audioContent;
int pirPin = 4;
Audio audio;
File dir;
const char audioDir[] = "/mp3";
void setup() {
Serial.begin(115200);
pinMode(SD_MMC_D0, INPUT_PULLUP);
SD_MMC.setPins(SD_MMC_CLK,SD_MMC_CMD, SD_MMC_D0);
if(!SD_MMC.begin( "/sdmmc", true, false, 20000)){
Serial.println("Card Mount Failed");
return;
}
audio.setPinout(I2S_BCLK, I2S_LRC, I2S_DOUT, -1, 0);
audio.setVolume(17); // 0...21 Will need to add a volume setting in the app
dir = SD_MMC.open(audioDir);
listDir(SD_MMC, audioDir, 1);
if(v_audioContent.size() > 0){
const char* s = (const char*)v_audioContent[v_audioContent.size() -1];
Serial.printf("playing %s\n", s);
audio.connecttoFS(SD_MMC, s);
v_audioContent.pop_back();
}
}
void loop(){
audio.loop();
}
void listDir(fs::FS &fs, const char * dirname, uint8_t levels){
Serial.printf("Listing directory: %s\n", dirname);
File root = fs.open(dirname);
if(!root){
Serial.println("Failed to open directory");
return;
}
if(!root.isDirectory()){
Serial.println("Not a directory");
return;
}
File file = root.openNextFile();
while(file){
if(file.isDirectory()){
Serial.print(" DIR : ");
Serial.println(file.name());
if(levels){
listDir(fs, file.path(), levels -1);
}
} else {
Serial.print(" FILE: ");
Serial.print(file.name());
Serial.print(" SIZE: ");
Serial.println(file.size());
v_audioContent.insert(v_audioContent.begin(), strdup(file.path()));
}
file = root.openNextFile();
}
Serial.printf("num files %i", v_audioContent.size());
root.close();
file.close();
}
void vector_clear_and_shrink(vector<char*>&vec){
uint size = vec.size();
for (int i = 0; i < size; i++) {
if(vec[i]){
free(vec[i]);
vec[i] = NULL;
}
}
vec.clear();
vec.shrink_to_fit();
}
// optional
void audio_info(const char *info){
Serial.print("info "); Serial.println(info);
}
void audio_id3data(const char *info){ //id3 metadata
Serial.print("id3data ");Serial.println(info);
}
void audio_eof_mp3(const char *info){ //end of file
Serial.print("eof_mp3 ");Serial.println(info);
if(v_audioContent.size() == 0){
vector_clear_and_shrink(v_audioContent); // free memory
return;
}
const char* s = (const char*)v_audioContent[v_audioContent.size() - 1];
Serial.printf("playing %s\n", s);
audio.connecttoFS(SD_MMC, s);
v_audioContent.pop_back();
}

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#include "Arduino.h"
#include "WiFi.h"
#include "Audio.h"
// Digital I/O used
#define I2S_DOUT 25
#define I2S_BCLK 27
#define I2S_LRC 26
Audio audio;
String ssid = "******";
String password = "******";
//****************************************************************************************
// A U D I O _ T A S K *
//****************************************************************************************
struct audioMessage{
uint8_t cmd;
const char* txt;
uint32_t value;
uint32_t ret;
} audioTxMessage, audioRxMessage;
enum : uint8_t { SET_VOLUME, GET_VOLUME, CONNECTTOHOST, CONNECTTOSD };
QueueHandle_t audioSetQueue = NULL;
QueueHandle_t audioGetQueue = NULL;
void CreateQueues(){
audioSetQueue = xQueueCreate(10, sizeof(struct audioMessage));
audioGetQueue = xQueueCreate(10, sizeof(struct audioMessage));
}
void audioTask(void *parameter) {
CreateQueues();
if(!audioSetQueue || !audioGetQueue){
log_e("queues are not initialized");
while(true){;} // endless loop
}
struct audioMessage audioRxTaskMessage;
struct audioMessage audioTxTaskMessage;
audio.setPinout(I2S_BCLK, I2S_LRC, I2S_DOUT);
audio.setVolume(15); // 0...21
while(true){
if(xQueueReceive(audioSetQueue, &audioRxTaskMessage, 1) == pdPASS) {
if(audioRxTaskMessage.cmd == SET_VOLUME){
audioTxTaskMessage.cmd = SET_VOLUME;
audio.setVolume(audioRxTaskMessage.value);
audioTxTaskMessage.ret = 1;
xQueueSend(audioGetQueue, &audioTxTaskMessage, portMAX_DELAY);
}
else if(audioRxTaskMessage.cmd == CONNECTTOHOST){
audioTxTaskMessage.cmd = CONNECTTOHOST;
audioTxTaskMessage.ret = audio.connecttohost(audioRxTaskMessage.txt);
xQueueSend(audioGetQueue, &audioTxTaskMessage, portMAX_DELAY);
}
else if(audioRxTaskMessage.cmd == CONNECTTOSD){
audioTxTaskMessage.cmd = CONNECTTOSD;
audioTxTaskMessage.ret = audio.connecttoSD(audioRxTaskMessage.txt);
xQueueSend(audioGetQueue, &audioTxTaskMessage, portMAX_DELAY);
}
else if(audioRxTaskMessage.cmd == GET_VOLUME){
audioTxTaskMessage.cmd = GET_VOLUME;
audioTxTaskMessage.ret = audio.getVolume();
xQueueSend(audioGetQueue, &audioTxTaskMessage, portMAX_DELAY);
}
else{
log_i("error");
}
}
audio.loop();
if (!audio.isRunning()) {
sleep(1);
}
}
}
void audioInit() {
xTaskCreatePinnedToCore(
audioTask, /* Function to implement the task */
"audioplay", /* Name of the task */
5000, /* Stack size in words */
NULL, /* Task input parameter */
2 | portPRIVILEGE_BIT, /* Priority of the task */
NULL, /* Task handle. */
1 /* Core where the task should run */
);
}
audioMessage transmitReceive(audioMessage msg){
xQueueSend(audioSetQueue, &msg, portMAX_DELAY);
if(xQueueReceive(audioGetQueue, &audioRxMessage, portMAX_DELAY) == pdPASS){
if(msg.cmd != audioRxMessage.cmd){
log_e("wrong reply from message queue");
}
}
return audioRxMessage;
}
void audioSetVolume(uint8_t vol){
audioTxMessage.cmd = SET_VOLUME;
audioTxMessage.value = vol;
audioMessage RX = transmitReceive(audioTxMessage);
}
uint8_t audioGetVolume(){
audioTxMessage.cmd = GET_VOLUME;
audioMessage RX = transmitReceive(audioTxMessage);
return RX.ret;
}
bool audioConnecttohost(const char* host){
audioTxMessage.cmd = CONNECTTOHOST;
audioTxMessage.txt = host;
audioMessage RX = transmitReceive(audioTxMessage);
return RX.ret;
}
bool audioConnecttoSD(const char* filename){
audioTxMessage.cmd = CONNECTTOSD;
audioTxMessage.txt = filename;
audioMessage RX = transmitReceive(audioTxMessage);
return RX.ret;
}
//****************************************************************************************
// S E T U P *
//****************************************************************************************
void setup() {
Serial.begin(115200);
WiFi.begin(ssid.c_str(), password.c_str());
while (WiFi.status() != WL_CONNECTED) delay(1500);
audioInit();
audioConnecttohost("http://mp3.ffh.de/radioffh/hqlivestream.mp3");
audioSetVolume(15);
log_i("current volume is: %d", audioGetVolume());
}
//****************************************************************************************
// L O O P *
//****************************************************************************************
void loop(){
// your own code here
}
//*****************************************************************************************
// E V E N T S *
//*****************************************************************************************
void audio_info(const char *info){
Serial.print("info "); Serial.println(info);
}

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// This arduino sketch for ESP32 announces the time every hour.
// A connection to the Internet is required
// 1) to synchronize with the internal RTC on startup
// 2) so that GoogleTTS can be reached
#include <Arduino.h>
#include "WiFiMulti.h"
#include "Audio.h"
#include "time.h"
#include "esp_sntp.h"
//------------------------USER SETTINGS / GPIOs-------------------------------------------------------------------------
String ssid = "xxxx";
String password = "xxxx";
uint8_t I2S_BCLK = 27;
uint8_t I2S_LRC = 26;
uint8_t I2S_DOUT = 25;
//------------------------OBJECTS /GLOBAL VARS--------------------------------------------------------------------------
Audio audio(false, 3, 0);
WiFiMulti wifiMulti;
uint32_t sec1 = millis();
String time_s = "";
char chbuf[200];
int timeIdx = 0;
//------------------------TIME / SNTP STUFF-----------------------------------------------------------------------------
#define TZName "CET-1CEST,M3.5.0,M10.5.0/3" // https://remotemonitoringsystems.ca/time-zone-abbreviations.php
char strftime_buf[64];
struct tm timeinfo;
time_t now;
boolean obtain_time(){
time_t now = 0;
int retry = 0;
Serial.println("Initializing SNTP");
sntp_setoperatingmode(SNTP_OPMODE_POLL);
sntp_setservername(0, "pool.ntp.org");
sntp_init();
const int retry_count = 10;
while(timeinfo.tm_year < (2016 - 1900) && ++retry < retry_count) {
Serial.printf("Waiting for system time to be set... (%d/%d)\n", retry, retry_count);
vTaskDelay(uint16_t(2000 / portTICK_PERIOD_MS));
time(&now);
localtime_r(&now, &timeinfo);
}
setenv("TZ", TZName, 1);
tzset();
localtime_r(&now, &timeinfo);
strftime(strftime_buf, sizeof(strftime_buf), "%c", &timeinfo);
if(retry < retry_count) return true;
else return false;
}
const char* gettime_s(){ // hh:mm:ss
time(&now);
localtime_r(&now, &timeinfo);
sprintf(strftime_buf,"%02d:%02d:%02d", timeinfo.tm_hour, timeinfo.tm_min, timeinfo.tm_sec);
return strftime_buf;
}
//-----------------------SETUP------------------------------------------------------------------------------------------
void setup() {
Serial.begin(115200);
wifiMulti.addAP(ssid.c_str(), password.c_str());
wifiMulti.run();
obtain_time();
audio.setPinout(I2S_BCLK, I2S_LRC, I2S_DOUT);
audio.setVolume(15);
}
//-----------------------LOOP-------------------------------------------------------------------------------------------
void loop() {
audio.loop();
if(sec1 < millis()){ // every second
sec1 = millis() + 1000;
time_s = gettime_s();
Serial.println(time_s);
if(time_s.endsWith("00:00")){ // time announcement every full hour
char am_pm[5] = "am.";
int h = time_s.substring(0,2).toInt();
if(h > 12){h -= 12; strcpy(am_pm,"pm.");}
sprintf(chbuf, "It is now %i%s and %i minutes", h, am_pm, time_s.substring(3,5).toInt());
Serial.println(chbuf);
audio.connecttospeech(chbuf, "en");
}
}
}
//------------------EVENTS----------------------------------------------------------------------------------------------
void audio_info(const char *info){
Serial.printf("info: %s\n", info);
}

60
lib/ESP32-audioI2S-3.0.6/keywords.txt Normal file
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#######################################
# Syntax Coloring Map For Ultrasound
#######################################
#######################################
# Datatypes (KEYWORD1)
#######################################
Audio KEYWORD1
#######################################
# Methods and Functions (KEYWORD2)
#######################################
audio_bitrate KEYWORD2
audio_commercial KEYWORD2
audio_eof_mp3 KEYWORD2
audio_eof_speech KEYWORD2
audio_icyurl KEYWORD2
audio_info KEYWORD2
audio_id3data KEYWORD2
audio_lasthost KEYWORD2
audio_showstreamtitle KEYWORD2
audio_showstation KEYWORD2
audio_eof_stream KEYWORD2
audio_id3image KEYWORD2
connecttoSD KEYWORD2
connecttoFS KEYWORD2
connecttohost KEYWORD2
getAudioCurrentTime KEYWORD2
getAudioFileDuration KEYWORD2
getDatamode KEYWORD2
getFilePos KEYWORD2
getFileSize KEYWORD2
getVolume KEYWORD2
loop KEYWORD2
pauseResume KEYWORD2
setDatamode KEYWORD2
setFilePos KEYWORD2
setPinout KEYWORD2
setVolume KEYWORD2
stopSong KEYWORD2
streamavail KEYWORD2
isRunning KEYWORD2
inBufferFilled KEYWORD2
inBufferFree KEYWORD2
i2s_mclk_pin_select KEYWORD2
setFileLoop KEYWORD2
setTone KEYWORD2
setBalance KEYWORD2
forceMono KEYWORD2
setInternalDAC KEYWORD2
setI2SCommFMT_LSB KEYWORD2
setTimeOffset KEYWORD2
#######################################
# Constants (LITERAL1)
#######################################

9
lib/ESP32-audioI2S-3.0.6/library.properties Normal file
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name=ESP32-audioI2S-master
version=2.0.0
author=schreibfaul1
maintainer=schreibfaul1
sentence=With this library You can easily build a WebRadio with a ESP32 board and a I2S-module.
paragraph=Plays webradio, playlists can be m3u, pls or asx. Data format can be only mp3, aac, flac or m4a. It can also play files from a SD Card.
category=Device Control
url=https://github.com/schreibfaul1/ESP32-audioI2S
architectures=esp32

5609
lib/ESP32-audioI2S-3.0.6/src/Audio.cpp Normal file
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