Funduino TouchKey USB Shield V3.1

The Funduino TouchKey USB Shield V3.1 allows you to turn everyday objects into touch-sensitive inputs and connect them to the internet, similar to the Makey Makey kit. By simply connecting a few alligator clips, you can transform almost anything into a button. With this Arduino shield, you can convert objects into mouse and keyboard inputs.

As an input method, it uses a dual-contact touch switch. It provides a touch terminal and a ground terminal for connecting two touch electrodes. A small current must flow through these two touch electrodes; by detecting this current, the system can recognize a touch event.