Fermion: MEMS Microphone Module Arduino Wiki - DFRobot

Introduction

This tiny MEMS microphone has an amplifier gain of 66. When there is no sound detected, it outputs voltage around 1.5V. When speaking, you can easily get the acoustic waveform by ADC sampling. The module can be used on all kinds of 3.3V/5V main-controllers.

Specification

Board Overview

Num Label Description
1 GND Power supply -
2 VCC Power supply +
3 A Analog output port

Tutorial

Requirements

Connection Diagram

Sample Code - Read Data

Burn code, open the serial port plotter, it will display the acoustic waveform

void setup() {
  Serial.begin(115200);
}

void loop() {
  // read the value from the sensor:
  Serial.println(analogRead(A0));
  delay(10);
}

Expected Results

FAQ

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