In a previous article, we looked at connecting various kinds of Arduino ... int RED = 9; int YELLOW = 10; int GREEN = 11; Think of a variable as a named container whose contents (value) you can ...

You will need the Arduino Board, a 560Ω resistor, and LED and the code example below. We set the pinButton variable ... The initial state of the LED is off but if you want to be on you have to change ...

We'll outline the basics of the Arduino itself, what the crazy jumble of wires means, and then step through how to use other people's code and schematics to build your first electronics project ...