Here is a traffic light system based on Arduino that can be used in a 3-way ond 4-way intersections. It has an additional blinking orange led that is used to signal when the pedestrians can cross the ...

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 … ...

The traffic light is very easy to read – red means something is broken, green means everything is alright, and yellow means a test suite is being run. Check out the video of [JD]’s TDD ...