RPC:

uRPC micro Remote Procedure Calls - 0.97

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mp3_wav

converts MP3 input to WAV format.

Output: WAV mono 8 bit 8 KHz
On a microcontroller, you can send audio to a speaker by skipping the WAV header (first 44 bytes). The remaining data is raw unsigned 8-bit PCM samples, suitable for direct output via DAC, PWM, or I2S.

Arguments:

input                 MP3 audio

You can provide the input data via an HTTP POST request with the data in the request body (maximum 256 KB).

Endpoint:

http[s]://saltlake71.eu/urpc?function=mp3_wav