Masterful Control This guide unlocks the secrets of your new Arduino Uno Diagram, empowering you to control its functionalities with precision. Please Keep This Manual for Future Reference This manual ...

The Arduino monitors up to 7 switches (S1 to S7) on pins 2 to 5 and 10 to 12. The switches pull the pins to GND or leave them floating, which brings them to VCC through the internal pull-up resistors.