[Bill] has been working with a gaggle of 8th graders this summer at a STEM camp, impressing them with his geeky attire such as an 8-bit and PCB ties, and an LED illuminated lab coat. The adolescent ...

If you found my recent Smart LED Streetlight useful, below is another solar light that is easy to build and install inside your shed, especially if getting mains power to the shed would be a pain. It ...

The open-source Arduino micro-controller is a very useful piece of kit which has been implemented by hackers to power countless endeavors from Musical Umbrellas to Angry Birds Slingshot Controllers.

What should you pick when you want to build a touchless lamp or light switch? A sensor of course! This is a design of a touchless lamp with a common and cheap reflective optical sensor. With a ...