Related products: Electromechanical Switches | Switch Indicators | Switch Rocker . Arduino schematic. Advertisement. Arduino code /* sketch 1 turn on a LED when the button is pressed turn it off when ...

Push Switch (S1) input point is at pin 9 of the Arduino. Connecting the display pins directly to Arduino I/O pins is not a good practice. For testing purpose only one 330 Ohm resistor (R2) is added ...