Getting an old traffic light and wiring it up to do its thing inside your house isn’t exactly a new trick; it’s so common that it wouldn’t normally pass muster for these hallowed … ...

Here's how to get started programming on them to create your own projects. In order to program your Arduino ... we'll use a third-party UNO breakout board and an external traffic light sensor ...

Going back to the garbage can example, you'll need a sensor, jumping wires, and a motor to make everything work. On top of all that, you'll need to program the device to do what you want it to do.