M5Stack Microphone Unit (LM393)

The M5Stack Microphone Unit is an omnidirectional sound sensor with MAX4466 amplification and adjustable analogue/digital output, ideal for sound detection, audio monitoring, and sound-activated control projects.

The M5Stack Microphone Unit is a sound sensor equipped with an omnidirectional electret microphone. The signal is amplified and output through the MAX4466 microphone preamplifier. This amplifier effectively suppresses power supply noise and common-mode noise, providing high-fidelity sound output, making it suitable for use in noisy environments. This unit can output both analogue and digital signals. It includes a built-in LM393 dual voltage comparator, allowing the comparison voltage threshold to be set by adjusting a 10K potentiometer. This sensor is ideal for projects involving sound-to-electricity conversion and sound-activated switches. Features

* Sound sampling/audio recording

* Built-in MAX4466 microphone preamplifier

* Omnidirectional, 52dB sensitivity

* Analogue and digital signal output

* Built-in voltage comparator and adjustable potentiometer for threshold setting

* Development platforms: Arduino, UIFlow (Blockly, Python)

* HY2.0-4P interface

* 2x LEGO-compatible holes

Specifications

Microphone sensitivity/Signal-to-noise ratio 52dB/40dB

Output signal Analogue/Digital

Input voltage 5V

Product Size 32.0 x 24.0 x 8.0mm

Product Weight 4.6g

Resources

* Product documentation

Package Contents

* 1x Unit MIC

* 1x HY2.0-4P Grove cable (20cm)