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| .. | ||
| base-file_raw-serial.ino | ||
| README.md | ||
Stream SD File to A2DP Bluetooth
We are reading a raw audio file from the SD card and send it to a Bluetooth A2DP device. The audio file must be available using 16 bit integers with 2 channels.
Audacity might help you out here: export with the file name audio.raw as RAW signed 16 bit PCM and copy it to the SD card. In my example I was using the file audio.raw.
The SD module is connected with the help of the SPI bus
Pins:
We connect the SD to the ESP32:
| SD | ESP32 |
|---|---|
| VCC | 5V |
| GND | GND |
| CS | CS GP5 |
| SCK | SCK GP18 |
| MOSI | MOSI GP23 |
| MISO | MISO GP19 |