INMP441 Omnidirectional multi-directional I2S MEMS microphone module Arduino ESP32 WLED

INMP441 omnidirectional I2S MEMS microphone module for ESP8266, ESP32, Arduino, Raspberry Pi

High-sensitivity, omnidirectional INMP441 microphone powered at 3.3 V, delivering natural, high-resolution sound. The module connects directly to DSP processors and microcontrollers via the I2S 24-bit digital interface, eliminating the need for additional audio codecs. MEMS technology ensures minimal noise and a clean signal. The kit includes goldpin headers.

Key technical specifications

• Supply voltage: 1.8 - 3.3 V
• Current consumption: 1.4 mA
• Frequency range: 60 Hz - 15 kHz
• Sensitivity: 26 dBFS
• Signal-to-noise ratio: 61 dBA
• Communication interface: I2S 24-bit
• Module dimensions: 12 x 14 x 3 mm

Example applications

• Speech recognition systems and voice assistants
• Audio recorders and digital dictaphones
• Reactive audio lighting projects, such as WLED
• Acoustic monitoring and smart home systems
• Intercoms and two-way communication devices

Benefits

• Direct digital connection - the I2S interface enables audio transfer without analog quality loss
• High audio quality - MEMS technology provides an excellent signal-to-noise ratio
• Low power consumption - just 1.4 mA makes the module ideal for battery-powered projects
• Compact size - a small board that is easy to integrate into space-constrained devices
• Broad compatibility - works easily with popular microcontroller platforms