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Capacitive 4×4 touch pad driven by Atmega32u4

4×4 button keypads are great user input option. But push buttons aren’t always the best choice due to esthetics, reliability and space constraints. It seems that capacitive input devices are taking over. Kasabah wanted to replace monome keys with non mechanical variant and so he came up with Atmega32u4 based 4×4 capacitive touch board.

4x4 touch pad driven by Atmega32u4

It is not only a keypad, but each key is also backed with LED. The board is designed with KiCAD which is free and open to use.

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