Hello everyone, First of all I want to give my apologies because of my english and my programming capabilities. The problem I have is quite easy, but I can´t make work this code: #include <Keypad.h> int myNum[]={0,0,0,0}; int total = 0; const byte ROWS = 4; const byte COLS = 4; char keys[R…

Getting a 4-digit number from a keypad

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