Multiple buttons with a single pin

Hello everyone!A lot of us happen to end the PIN analog on our board, to avoid this you can create a circuit that depending on the voltage varies Arduino decide which button was pressed. The circuit First we need to:- Arduino Uno- A resistor 4.7 KOhm- Three resistors 1 Kohm- Four buttons- Breadbo...

By: dev.alessiobigini



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