Re: Keypad for Raduino...?

DuWayne Schmidlkofer
 

One of the easiest ways to do this might be to use a I2C expander configured something like this board from Microchip https://www.microchip.com/DevelopmentTools/ProductDetails/GPIODM-KPLCD
You could control the keyboard and display over I2C and free up the existing display pins for other uses.


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DuWayne  KV4QB

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