INMP441 I2S Digital Microphone Module Omnidirectional MEMS Mic Low Noise High Precision for Arduino – KSH 700 at HIMA TRONICS Mombasa – Top quality sensors. Best electronics in Kenya. Shop now for Arduino, ESP32, sensors and IoT devices.
Home / Sensors / INMP441 I2S Digital Microphone Module Omnidirectional MEMS Mic Low Noise High Precision for Arduino

INMP441 I2S Digital Microphone Module Omnidirectional MEMS Mic Low Noise High Precision for Arduino

SKU: HMJ154 Category: Sensors
KSH 700.00
In Stock
Inquire
Product Description

INMP441 I2S Digital MEMS Microphone Module

= High-Precision Omnidirectional MEMS Mic for Arduino and ESP32 Projects =

The INMP441 is a highperformance, lowpower digital MEMS microphone with an omnidirectional pickup pattern and an I2S interface. It provides crystalclear audio capture with a 24bit data output, making it an excellent choice for near-field applications, voice recognition, wearables, and IoT projects .

High SNR & Low Noise 61 dBA signalto-noise ratio ensures clear audio capture even in challenging environments .
Digital I2S Interface - Directly connects to digital processors like ESP32, STM32, and DSPs without needing an audio codec .
Operating voltage: 1.8V to 3.3V .
Current consumption: 1.4mA (at 1.8V) to 2.2mA (at 3.3V) .
For highquality audio recording and processing (24bit, up to 48kHz), the INMP441 is significantly better than analogue microphone modules .

= Technical Specifications =

ParameterValue
Sensitivity-26 dBFS ±3 dBFS at 1kHz, 94dB SPL
SNR61 dBA (A-weighted)
Frequency Response60 Hz to 15 kHz
THD≤3% at 105dB SPL
Acoustic Overload Point120 dB SPL at 10% THD
Package Size4.72 x 3.76 x 1.00 mm
Temperature Range-40°C to +85°C

= Pin Configuration =

PinFunctionDescription
VDDPower Supply1.8V to 3.3V
GNDGroundPower ground
SCKSerial Data ClockI2S bit clock input
WSWord SelectI2S frame clock (LRCLK)
SDSerial DataI2S data output
L/RLeft/Right SelectGND = Left channel, VDD = Right channel

= Connection Guide (ESP32) =

INMP441 PinESP32 PinESP32-S3 Pin
VDD3.3V3.3V
GNDGNDGND
WSGPIO 15GPIO 40
SCKGPIO 14GPIO 41
SDGPIO 32GPIO 39
L/RGND (Left) or 3.3V (Right)GND (Left) or 3.3V (Right)
In ESP32 Arduino code, use the I2S driver in receive mode (I2SPHILIPSMODE) .
For dual-microphone setups, the WS and SCK lines can be shared, but each mic needs its own unique SD pin .

= Applications =

  1. Voice recognition and wake-word detection .
  2. High-quality audio recording for projects .
  3. Wearable and IoT devices .
  4. Sound direction finding (using dual mics) .
  5. Drones and mobile devices .
HighPerformance Mic Superior audio quality and low power, perfect for advanced audio projects.
Easy Integration - Direct digital I2S connection for modern microcontrollers .

√ Compatible with ESP32, ESP32S3, STM32, and other I2Scapable MCUs .

√ Excellent for nearfield and noisesensitive applications .