It's a sample 4X4 key-pad shield with a 5110 Graphic LCD interface. Just plug it on Arduino directly, you get the small development platform with keypad input and Graphic LCD display. This KeyPad shield use 8 digital pins to do the rows and columns scanning, and it support 16 buttons.With this Ke…

4X4 Key-pad shield with 5110 LCD display interface

almamater June 15, 2011, 10:29am 3

Yes! I have the same problem.. the solution: screwshield

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