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3PCS INMP441 Omnidirectional Microphone Module I2S Interface MEMS High Precision Low Power Ultra Support ESP32

4.7 (3) Write Review
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$9.49

$ 3 .99 $3.99

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About this item

  • The INMP441 is a high performance, low power, digital output, omnidirectional MEMS microphone with bottom port. The complete INMP441 solution consists of a MEMS sensor, signal conditioning, analog to digital converter, anti-aliasing filter, power management and industry standard 24-bit I2S interface.
  • The INMP441 has a high signal-to-noise ratio and is an excellent choice for near field applications. The INMP441 has a flat wideband frequency response that results in high definition of natural sound.
  • The I2S interface allows the INMP441 to be directly connected to digital processors such as DSPs and microcontrollers without the need for an audio codec for use in the system. 4.Interface definition: SCK: Serial data clock for I2S interface; WS: Serial data word selection for I2S interface; L/R: Left/Right channel selection.
  • Interface definition: SCK: Serial data clock for I2S interface; WS: Serial data word selection for I2S interface; L/R: Left/Right channel selection.
  • Omnidirectional microphones are highly sensitive, and pickup radius is too large, and it will also pick up more ambient noise, so the sound quality is not as good as the single-point microphone, unless you do a good noise reduction. There is definitely a difference between collective use and single-person service.But omnidirectional wheat has a benefit, the wiring is simple, not one by one. Suitable for small meetings, ad hoc meetings, some remote discussions, remote operations.


Product Description

INMP441 Omnidirectional Microphone Module I2S Interface

Interface definition:

SCK: Serial data clock for I2S interface

WS: Serial data word selection for I2S interface

L/R: Left/Right channel selection.

When set to low, the microphone outputs a signal 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 the I2S interface.

VCC: Input power, 1.8V to 3.3V.

GND: power ground

This product provides tutorials for using ESP32 modules with I2S functionality. Connect to ESP32:

INMP441 ESP32

SCK >> GPIO14

SD >> GPIO32

WS >> GPIO15

L/R >> GND

GND >> GND

VDD >> VDD3.3

Product Features:

  • Digital I2S interface with high precision 24-bit data
  • High signal to noise ratio is 61 dBA
  • High sensitivity - 26 dBFS
  • Stable frequency response from 60 Hz to 15 kHz
  • Low power consumption: low current consumption 1.4 mA
  • High PSR: -75 dBFS

Oleg Golimbievsky
Reviewed in the United States on May 14, 2025
Perfect for sound reactive WLED on an Arduino or an ESP32. Picks up every note even when it's quiet and doesn't distort when playing loud music like some of the cheaper ones I've tried. Highly recommend and will be buying more.
mohawkdigital
Reviewed in the United States on February 8, 2024
The media could not be loaded.
JC
Reviewed in the United States on October 11, 2024
They work great.