4x4 Matrix-Tastatur 16-Tasten-Folientastatur Keypad-Tastatur 8-Pin

4x4 Matrix-Folientastatur. Sonstige Schalter. #include const byte ROWS = 4;//four rows const byte COLS = 3;//three columns char keys[ROWS][COLS] = { {'1' ,'2' ,'3' }, {'4' ,'5' ,'6' }, {'7' ,'8' ,'9' }, {'#' ,'0' ,' ' } };byte rowPins[ROWS] = {5, 4, 3, 2};//connect to the row pinouts of the keypad byte colPins[COLS] = {8, 7, 6};//connect to the column pinouts of the keypad Keypad keypad = Keypad( makeKeymap(keys), rowPins, colPins, ROWS, COLS );void setup (){Serial.

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