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SparkFun Electret Microphone Breakout
project on
hackster.io project

Lightbulb controlling TV
by Aaron Marquez

Description: This small breakout board couples an Electret microphone (100Hz–10kHz) with a 60x mic preamplifier to amplify the sounds of voice, claps, door knocks or any sounds loud enough to be picked up by a microcontroller’s analog-to-digital converter. Each breakout comes fully assembled and works from 2.7V up to 5.5V.

The Electret Mic Breakout translates amplitude (not volume) by capturing sound waves between two conducting plates (one a vibrating diaphragm and the other fixed) in the microphone and converting them into electrical waves. These electrical signals are then amplified and picked up by your microcontroller’s ADC.

Get Started With the Electret Microphone Guide!

Documents:

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Customer Comments

  • How do i configure this to pick up only small breathing sounds? It seems like once I make a sound it keeps logging the knock knock even if I have the volts >= 2.0 && volts <= 3.0

  • Is the output centered on 0?

  • How is this different from BOB-09964?

    • This is a revision of that product. They still have the same function but the revision has an updated filter for better performance. There is also a tutorial with a couple example projects and more projects to follow in early July.

      • Got it, thanks! I’m always curious what’s different when there’s a new revision of a product.

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Related Tutorials

Electret Mic Breakout Board Hookup Guide

June 23, 2016

An introduction to working with the Electret Mic Breakout Board.