I have one of those legendary Jawbone BlueTooth headsets. It works great, but I hate having to deal with it: Put it on. Take it off. Forget you have it on and look like a dork. Charge it when you get home. Lose it. What I REALLY wanted was a speakerphone for my car that I never had to think...

That funny looking symbol on my new business card is a QR code. Lately these little beasties have been cropping up on everything from T-shirts to magazine ads. The QR (Quick Response) code is a two-dimensional bar code that can store contact info, URLs, even paragraphs of text. Although they...

Did you ever play the electronic game “Lights Out?” I’ve built a seven-color version of this toy from the 70′s using LED’s and a PIC microcontroller. (More on this...

Back in 1954, before we had LED’s and digital readouts, Nixie Tubes were the only way to display digital data. Today, these delicate glass tubes are very rare. I’ve been buying them from decommissioned factories in Russia and designing them into retro electronic devices like clocks...