The instructions call for the ground (brown wire) on this side. Here’s the LED turn signal circuit board without the clear lens. The “U” on the lens has to surround this post after the turn signal ...

Amateur radio operators would prototype circuits on wooden boards, often using whatever ... constructing a simple LED flasher circuit. He says that the process works decently enough, and was ...

Inspired by printed circuit boards, the building block of all electronics, a Dutch designer has created an LED-based light installation that draws upon the familiar etching pattern inside most ...

Almost a month ago I started trying to reverse engineer an inexpensive LED ... out the circuit, and taken control of the bulb. But there’s still a few mysteries in this little blinker.