I have a simple code reading an i2s microphone on an esp32 written with Arduino. The code runs fine when I build with framework=arduino only. As soon as I build with famework=arduino,esp-idf the i2s output is only zeros. I have no issues with my code otherwise. Any ideas? This works: [env:feat…

michikite December 31, 2020, 4:41am 2

found the error. platformio uses version 4.0 of esp-idf when combined with arduino, and for some reason left and right i2s channels are swapped in this version.

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ESP32 I2S stops working when building with arduino AND esp-idf framework