INMP441 Omnidirectional MEMS Microphone Module 24-bit I²S

INMP441 Omnidirectional MEMS Microphone Sensor Module

Upgrade your electronics projects with the INMP441 Omnidirectional MEMS Microphone Sensor Module — a high-precision digital output microphone module built around the industry-standard 24-bit I²S interface. Whether you're working on a voice-recognition system, IoT device, audio capture application, or embedded DSP project, this compact module delivers clean, accurate audio data with minimal setup.

Key Features

• Complete INMP441 MEMS Solution: Integrates a MEMS microphone sensor, signal conditioning circuitry, analog-to-digital converter, anti-aliasing filter, and power management — all in one ready-to-use module.
• Industry-Standard 24-bit I²S Interface: Outputs high-resolution 24-bit digital audio data via the I²S protocol, ensuring compatibility with a wide range of digital audio systems.
• Direct Connection to Digital Processors: Connect directly to DSPs, microcontrollers (such as ESP32, Arduino, Raspberry Pi, and STM32), and other digital processors — no audio codec required.
• Omnidirectional Pickup Pattern: Captures sound equally from all directions, making it ideal for voice assistants, conference audio, and ambient sound monitoring applications.
• Compact & Versatile Design: Small form factor fits neatly into enclosures and breadboard setups. Available in 4 color options to suit your build aesthetic.
• Wide Application Range: Suitable for voice recognition, noise monitoring, smart home devices, robotics, wearables, and more.

Technical Specifications

• Microphone Type: MEMS (INMP441)
• Interface: 24-bit I²S digital output
• Pickup Pattern: Omnidirectional
• Compatible Platforms: ESP32, Arduino, STM32, Raspberry Pi, and most I²S-capable microcontrollers/DSPs
• Available in: 4 color options

Who Is This For?

This module is perfect for hobbyists, engineers, and makers who need a reliable, high-quality microphone input for their electronics or embedded computing projects. Whether you're building a smart speaker, experimenting with voice commands, or developing an audio sensing application, the INMP441 module is a plug-and-play solution that gets you up and running fast.

For more information on microelectronics standards and best practices for electronic components, visit the National Institute of Standards and Technology (NIST).

Frequently Asked Questions

Q: What is the INMP441 Omnidirectional MEMS Microphone Sensor Module?

A: The INMP441 is a complete MEMS microphone sensor module featuring a 24-bit I²S digital interface. It integrates a MEMS microphone, signal conditioning, an analog-to-digital converter, an anti-aliasing filter, and power management into a single compact board — ready for use with microcontrollers, DSPs, and single-board computers.

Q: What microcontrollers or processors is this module compatible with?

A: Thanks to its standard I²S interface, the INMP441 module connects directly to any I²S-capable processor — including popular platforms like the ESP32, Arduino (with I²S support), STM32, and Raspberry Pi — without needing an external audio codec.

Q: What are the typical applications for this sensor module?

A: This omnidirectional microphone module is widely used in voice recognition systems, smart home devices, IoT audio sensing, robotics, wearable tech, noise monitoring setups, and any embedded project that requires high-quality digital audio input.

Q: Does this module require any special libraries or drivers?

A: In most cases, standard I²S libraries available for popular development platforms (such as the ESP-IDF for ESP32 or Arduino I²S library) work out of the box with the INMP441 module, making integration straightforward for both beginners and experienced developers.