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Coquí: A Simple Water Conductivity Sensor

This is a revision from April 15, 2016 14:41. View all revisions
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This is a beginner's guide to assembling the Coquí

The Coquí is a simple water conductivity sensor by @donblair that is designed for use in an educational context. The coquí is a simple circuit assembled on a breadboard that has a speaker that outputs high frequency sound when the conductivity is higher and lower frequency sounds when the conductivity is lower.

Who is this for?

Step-by-step guide to assembling the Coquí

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