5. 2.4 Microphone I2S : calcul du niveau sonore en dB RMS
5.1. Câblage INMP441 → ESP32-S3
INMP441 ESP32-S3
------- --------
VDD ───────── 3V3
GND ───────── GND
WS ───────── GPIO 5 (Word Select / LRCLK)
SCK ───────── GPIO 6 (Serial Clock / BCLK)
SD ───────── GPIO 7 (Serial Data)
L/R ───────── GND (canal gauche)