Arduino + MQ3 = alcohol breath tester

in Arduino, measurement by the machinegeek | 2 comments

This the season for good cheer, and what can be more cheerful than a project that’s as much fun to use as it is to build? How about a homebrew alcohol breath tester? Daniel Andrade shows how to build just such a device using just an Arduino, MQ3 alcohol sensor and a handful of resistors and LEDs. While this project is for academic and experimental purposes only, we suggest testing its calibration often.

This entry was posted in Arduino, measurement and tagged , , , .

Comments

  1. m.karthick says:

    please send the full details about this project and circuit diagram

  2. lee says:

    Please send me the circuit for this experiment

Leave a Comment

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>

Notify me of followup comments via e-mail. You can also subscribe without commenting.