Instructions

IDUINO for maker’s life
12 www.openplatform.cc
Module3． Large Microphone Module
1. Introduction
It’s a high sensitivity sound detection module, which has two output signal pin. one digital
pin(D0), When it detect some sound up to certain threshold, it can output High or Low level.
One analog pin(A0), it can real-time output voltage signal of the microphone.
Specification
 Voltage:5V/3.3V
 Electret microphone(It’s different from module4)
 there is a mounting screw hole 3mm
 the use 5v DC power supply
 with analog output
 there is threshold level output flip
 high sensitive microphone and high sensitivity.
 a power indicator light
 the comparator output is light
 Weight: 4g
 Frequency Response range:50Hz～20kHz
 Impedance：2.2K ohm
 Sensitivity：48~66dB
 polar pattern：Universal
 Operating temperature: -40 to 85 degrees Celsius
 Operating humidity: <90%