Circular INMP441 MEMS Microphone Module
Product Description
The Circular INMP441 MEMS Microphone Module is a compact digital microphone module designed for capturing high-quality audio in electronic and embedded applications. It features the INMP441 MEMS microphone, which provides a digital audio output through the I2S interface, making it suitable for direct connection to microcontrollers and development boards.
The circular PCB design offers a compact form factor, making the module suitable for projects with limited installation space. It can be used with platforms such as ESP32, ESP32-S3, Arduino-compatible boards with I2S support, and other embedded systems.
Features
- Based on the INMP441 MEMS microphone.
- Digital audio output using the I2S interface.
- Compact circular PCB design.
- High-quality digital audio capture.
- Low-noise MEMS microphone technology.
- Suitable for embedded and IoT applications.
- Easy interfacing with I2S-compatible microcontrollers.
- Ideal for voice recognition and audio recording projects.
Technical Specifications
| Specification | Details |
|---|---|
| Product Type | Digital MEMS Microphone Module |
| Microphone IC | INMP441 |
| Audio Interface | I2S |
| Output Type | Digital Audio |
| Microphone Technology | MEMS |
| PCB Shape | Circular |
| Supply Voltage | Typically 3.3V |
| Compatible Platforms | ESP32, ESP32-S3 and other I2S-compatible boards |
Pin Functions
| Pin | Function |
|---|---|
| VDD | Power Supply |
| GND | Ground |
| SCK / BCLK | I2S Serial Clock |
| WS / LRCLK | I2S Word Select |
| SD | Digital Audio Data Output |
| L/R | Left or Right Channel Selection |
Applications
- Voice-controlled projects.
- Audio recording.
- Voice recognition systems.
- ESP32 and ESP32-S3 projects.
- Smart assistants.
- IoT devices.
- Sound detection and analysis.
- Digital audio applications.
- Educational and embedded electronics projects.
Important Note
The INMP441 is a digital I2S microphone, not an analog microphone. It requires an I2S-compatible interface and is typically powered from 3.3V. Always verify the pin labels and operating requirements of the specific module version before connecting it to your circuit.
Magnetic Switch with magnet 










