INMP441 Omnidirectional MEMS Microphone Module
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৳ 700.00৳ 900.00 (-22%)
The INMP441 Omnidirectional MEMS Microphone Module is a high-precision, low-power digital microphone board featuring a 24-bit I2S interface. It outputs crisp, studio-grade digital audio directly to processors like the ESP32 without requiring an analog-to-digital converter (ADC) or external preamplifier. Its 360-degree pickup pattern and compact design make it the perfect solution for voice recognition, smart-home automation, and portable IoT audio recording projects.
If you want to use this module, I can provide:
A quick ESP32 wiring chartA simple Arduino code template to test audio outputTips on choosing the right power supply to prevent audio hum
INMP441 Omnidirectional MEMS Microphone Module
The INMP441 Omnidirectional MEMS Microphone Module is a high-performance, ultra-low power, digital-output microphone breakout board featuring a 24-bit I2S (Inter-IC Sound) digital interface. Designed around an omnidirectional bottom-port silicon sensor, this module eliminates the need for an external analog-to-digital converter (ADC) or a preamplifier, allowing direct digital audio transmission to microcontrollers like the ESP32, Raspberry Pi, or STM32.
Its unique circular form factor makes it an ideal, compact solution for embedding clear audio capture into modern smart devices, wearable tech, and automated IoT projects.
INMP441 Omnidirectional MEMS Microphone Module
Key Product Highlights
- Direct Digital Audio Pipeline: Features a native I2S data output that streams raw, high-fidelity 24-bit audio directly into your processor. This eliminates the electromagnetic interference (EMI) and signal degradation common with traditional analog microphones.
- Omnidirectional Pickup Pattern: Offers equal 360-degree sensitivity to sound, ensuring uniform acoustic capturing regardless of the module’s orientation or placement.
- Low Power Consumption: Operates on a modest current consumption of just 250 µA (typical), making it incredibly energy efficient for battery-operated remote sensors or wearable gadgets.
- Wide, Flat Frequency Response: Covers a broad frequency spectrum from 60 Hz up to 15 kHz, providing a well-balanced, natural audio profile perfectly optimized for clear human speech recognition.
- Configurable Spatial Audio: Includes a hardware Left/Right channel selection pin (
L/R), making it incredibly straightforward to link two modules together on a single I2S bus for true stereo audio recording.
INMP441 Omnidirectional MEMS Microphone Module
Technical Specifications
- Sensor Type: Bottom-ported MEMS (Micro-Electro-Mechanical Systems) [20]
- Digital Interface: I2S (Inter-IC Sound) [3]
- Data Resolution: 24-bit [20]
- Signal-to-Noise Ratio (SNR): 61 dBA [20]
- Sensitivity: −26 dBFS (decibels relative to full scale) [20]
- Supply Voltage: 1.8V to 3.3V (3.3V logic recommended) [10, 20]
- Current Consumption: 250 µA (0.1 µA in standby mode) [20]
- Acoustic Overload Point: 120 dB SPL
INMP441 Omnidirectional MEMS Microphone Module
Target Applications
- Smart home automation hubs and voice-activated assistance
- IoT acoustic sensors, environmental sound logging, and security alarms
- Wearable technology, smart watches, and portable media recorders
- Voice recognition, speech-to-text processing, and DSP development
- DIY communication electronics and walkie-talkies using microcontrollers
If you’re building a project with this microphone, would you like me to provide:
A sample code snippet for the Arduino IDE to record soundInstructions on configuring two modules for stereo audioSteps on how to filter out background noise in software
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