INMP441 I2S omnidirectional microphone module with round black PCB and three pins for electronics projects

INMP441 Pre-Soldered I2S Omnidirectional Microphone Module

SKU AH132

$9.99 USD Shipping & tax calculated at checkout
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INMP441 I2S omnidirectional digital microphone module captures clear voice/audio for ESP32, STM32, and Raspberry Pi in voice recognition, robotics, home automation, IoT, and wearables.

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Overview

Product Overview

The INMP441 I2S omnidirectional microphone module is a compact digital microphone for capturing clear audio and voice data over an I2S interface, making it ideal for sound-reactive projects, voice recognition, recording, and acoustic sensing. Built around the INMP441, it outputs digital audio directly to controllers that support I2S, helping reduce analog noise in embedded designs. Use it with ESP32, STM32, Raspberry Pi, and other boards with I2S input for robotics, smart speakers, home automation, IoT prototyping, and wearable audio applications where reliable omnidirectional sound pickup is needed. The header pins ship pre-soldered, so it works out of the box with no soldering required.

Questions & answers

Frequently asked questions

Yes. It is intended for controllers with I2S input, including ESP32, STM32, Raspberry Pi, and similar boards. Standard Arduino boards only work if they provide compatible I2S hardware or a supported I2S audio interface.
Yes. This ShillehTek module is sold pre-soldered, so the header is already attached for breadboard or jumper-wire use. You still need to wire it to an I2S-capable controller and configure the audio input in software.
The module outputs digital audio over I2S, not an analog microphone signal. Connect it to your controller’s I2S clock, word-select, data, power, and ground connections, and use software that supports I2S audio capture.
Yes. Its omnidirectional pickup and digital I2S output make it suitable for voice recognition, sound-reactive LEDs, recording, smart speaker prototypes, robotics, home automation, IoT sensing, and other embedded projects that need clear voice or sound data.
First confirm the host board supports I2S input and that the I2S pins are wired and configured correctly. This module will not produce audio on an analog input pin; the project code must read digital I2S audio data.

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What's included

Features & Specs

I2S Audio Output Uses an I2S interface to send digital audio directly to controllers with I2S input.

INMP441 Microphone Built around the INMP441 digital MEMS microphone for embedded audio and voice capture.

Omnidirectional Pickup Captures sound from all directions for voice detection and ambient audio sensing.

Board Compatibility Compatible with ESP32, STM32, Raspberry Pi, and other microcontrollers or SBCs that support I2S.

Lower Noise Path Digital audio output helps reduce analog noise in embedded audio designs.

Voice And Recording Suitable for voice recognition, recording, and sound-reactive projects.

Embedded Use Cases Works well in robotics, smart speakers, home automation, IoT prototypes, and wearable audio applications.

Reference

Documents

Full Product Manual INMP441 I2S Omnidirectional Microphone Module | ShillehTek Product Manual In-depth setup guide with wiring, code examples, and troubleshooting.

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