| INMP441 pin | ESP32 pin | Code meaning |
|---|---|---|
| VDD | 3.3V | power supply |
| GND | GND | land |
| SCK / BCLK | GPIO18 | I2S Bit Clock |
| WS / LRCLK | GPIO23 | I2S Word Select |
| SD / DOUT | GPIO19 | Microphone data input |
| L/R | GND | Select channel |
| INMP441 pin | ESP32 pin | Code meaning |
|---|---|---|
| VDD | 3.3V | power supply |
| GND | GND | land |
| SCK / BCLK | GPIO18 | I2S Bit Clock |
| WS / LRCLK | GPIO23 | I2S Word Select |
| SD / DOUT | GPIO19 | Microphone data input |
| L/R | GND | Select channel |