hello, I need to work with the keyboard 3 * 4, but when I compile I get this mesaje , ' This was not Declared In scope and and I tried everything but it does not work . I could help please . I leave copy of the program . #include <Keypad.h> char codigosecreto = '12345'; int position = 0; cons…

compile when I get the message ' setLocked ' was not Declared In This scope

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