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    blackswords got a reaction from bluehash in Keypad library   
    I was trying to use this library but keys appeared to trigger by themselves and so the keypad was quite unusable. So I modified the initializePins() function in the library to set inputs as INPUT_PULLDOWN instead of floating inputs and now it's working fine. I hope it can help someone in the same case as I was. And it should be possible to modify the library with preprocessor statements to set pulldown resistors on inputs when it is available on the platform (Energia, Maple, new Arduinos I think, etc) to avoid bugs
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