Package Included

- 1 x NMP441 MEMS High Precision Microphone for ESP32 ESP8266 - Compatible Version

Description:

- NMP441 is an omnidirectional MEMS microphone with high performance, low power consumption, digital output and bottom port.
- Digital I²S interface with high-precision 24-bit data
- High signal-to-noise ratio of 61 dBA
- High sensitivity -26 dBFS
- Stable frequency response from 60 Hz to 15 kHz
- High PSR: -75 dBFS

Interface:

- SCK: Serial data clock of I²S interface
- WS: Serial data word selection for I²S interface
- L/R: Left/right channel selection.
When set to low level, the microphone outputs signals on the left channel of the I²S frame.
When set to high level, the microphone outputs signals on the right channel
- SD: Serial data output of I²S interface.
- VCC: Input power, 1.8V to 3.3V.
- GND: power ground

INMP441 ESP32 Development Board
SCK >> GPIO14
SD >> GPIO32
WS >> GPIO15
L/R >> GND
GND >> GND
VDD >> VDD3.3

Reference

• https://hackaday.io/project/162059-street-sense/log/160705-new-i2s-microphone
  

Video Reference