Touch key USB Shield Expansion Board Analog Keyboard Keypad for Arduino A2TF
7,40 €
In addition, traditional switches are replaced by touch mode. We can reproduce what the video shows only by arduino and Touch key USB Shield. 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.
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