Seven segment LEDs are an extremely cost effective way to add a large, bright and very readable numeric display to your project. Displays similar to the one pictured above can be had for as little as 50 cents each on ebay in the common heights of 0.56″, 0.36″ and 0.28″. You...

In a previous article I described the design and build of a temperature sensor board based around a high precision LTC2986 part from Linear Technology. The project was successful so you may be wondering why I’m bothering to design another board when the LTC2986 probably cannot be...

My previous article documented how I designed and built a PCB that hosted three relays and a triac that could be mounted inside a PC case and connected up via the USB bus for host control using simple commands. The relays and triacs board That board is of course the output part of the system,...

Regular readers of this blog will have already seen the article that I published about 4 months ago where I attempted to reverse engineer a voltage regulator module originally designed to fit into a Dell server. The theory was that these would be high quality, stable and robust designs that...