Last Updated or created 2023-01-17 As mentioned in post below Update: https://www.henriaanstoot.nl/2023/01/17/arduino-concertina-poc-2/ So i’ve bought some needed parts and made a proof of concept. Arduino CodeNeeds https://playground.arduino.cc/Code/Keypad/ keypad libraryNot all buttons are configured with frequencies … yet Lets make a test holder from pieces of wood, when i’ve got the sizes correct, i’ll 3D print … Continue reading Arduino Concertina – POC