Product Details
Product Description
Description:
This touch key USB Shield adopts touch mode as input method and is set with double-contact touch switch. The touch port and GND have been lead out and connected to two touching electrodes, so when you touch these two electrodes, there will be a certain amount of electric current pass through due to body resistance. We can detect the touch event by inspecting the amount of such electric current. While Makey analog keyboard works in the same way.
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