LM386 Sound Sensor Module Breakout Board

Availability: Out of stock

Sku: SEN-019

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Quick Overview

This sound sensor couples a small highly sensitive electret microphone with  an LM386 op-amp with adjustable gain to detect ambient sound.

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Categories : Breakout Boards, Sensors

Overview

This sound sensor couples a small highly sensitive electret microphone with  an LM386 op-amp to detect ambient sound, which is loud enough to be picked up by a microcontroller’s analog to digital converter.

Aside the power and ground pins, it has two other pins, A0, which connects to an analog pin of your microcontroller and D0 which connects to a digital pin.

Features

  • Features a high sensitivity with Electret Condenser Microphone;
  • Onboard audio amplifier LM386
  • Adjustable gain up to 200
  • Signal output indicator
  • LED comparator output indication

Specifications

  • Mic sensitivity : 52dB
  • Frequency range : 50Hz ~ 20KHz
  • Power: 3.3V ~ 5.3V
  • Mounting holes size: 2.0mm

Applications

  • Ambient sound detection
  • Sound level detection

Resources

Sample Code and Schematic (from Robotshop)

 

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