Find all your DIY electronics in the MakerShed. 3D Printing, Kits, Arduino, Raspberry Pi, Books & more!


My friend Randy at the fffffatlab made this breathalyzer microphone:

The breathalyzer microphone is a system for the inconscpicuous collection of blood-alcohol content level data sets. In other words, you can measure a person’s sobriety with a device, that for all intents and purposes, looks no different than a standard microphone.

He has also created full step-by-step instructions for the project. I can see it applied in addition to the regular microphone to weight your karaoke score based on how much you’ve had to drink.


Arduino breathalyzer controls video game

Becky Stern

Becky Stern is head of wearable electronics at Adafruit Industries. Her personal site:



  1. Noah Buddy says:

    This would be perfect in Karaoke bars. It could even show your blood alcohol content. At least then you would have an excuse for singing badly.

  2. says:

    Could we have one that lowers volume/ mic sensitivity with increasing BAC?

  3. Anonymous says:

    Would you be interested in exchanging links? | acompanhantes morenas