Getting an old traffic light and wiring it up to do its thing inside your house isn’t exactly a new trick; ... every element of the sound was meticulously recreated in his Arduino code.

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 ...

The traffic light server monitoring system uses an Arduino microcontroller to interface with the Xymon server monitoring software. Xymon is an open-source tool that provides real-time monitoring ...