Coqui Conductivity Sensor
The Coqui is a circuit that allows you to 'hear' the readings from various sensors. With an assembled unit, you'll be able to 'hear' the conductivity of a liquid, the temperature of a room, or the amount of light, as a kind of hum or buzz.
For example, a Coqui can measure:
This version of the Coqui is made on a breadboard, and with just a few simple parts. This kit contains all the parts you need to get started, and learn how to build your own with this page on the Public Lab site!
Note: some images (those with a box) show the "Mega-Coqui" version with an audio out plug for attaching to a speaker, which we sell as a kit and assembled. Learn how to build the Mega Coqui here.
For an overview and more activities and upgrades: click here
This is a Prototyping Kit: Prototyping Kits offered by the Public Lab Kits Initiative are in-development kits which we send out for people to help prototype and experiment with, in order to refine and improve them. These help support the development of new techniques for monitoring environmental problems. We call these Prototyping Kits and they come with a list of challenges and problems to solve.