This project will take the button reading to see where it is to where it was. We need to think about keeping track of the LED state also. We want the switching to happen when the button has been ...

Connect the LED's anode (longer leg) to the digital pin 9 (PWM pin) on the Arduino board using a 220-ohm resistor. Connect the LED's cathode (shorter leg) to one of the GND pins on the Arduino board.

I had a PC like this with a 2 digit display. LED segments were switched on or off by the Turbo switch and an array of diodes. Some of the segments were permanently wired on, no switching at all.

You can read the state of a button using Arduino and a few lines of code. The actual state is shown in the Serial Monitor window as 0 or 1, 0 meaning the button is not pressed and 1 that the button is ...

Think of it as a Netflix and Chill button, but with maybe less Chill. The Netflix Switch is powered by a Particle Core, an Arduino-compatible development kit that features on-board WiFi.