Last July I wrote about using Adobe Illustrator to design the schematics I publish here and why I prefer it (you can read that post here). In recent weeks I’ve come to realize two things: despite a great deal of effort on my part, I can’t really design printed circuit boards with Illustrator, and I [...]

So, I’m going to use Henne’s transceiver for an LED matrix. You coulda probably guessed, if you’d thought about it for a minute or three.
Anyway, I fell back on my – ahem – process: first, draw the circuit in Adobe Illustrator and then build it on a breadboard.
(I have been asked in the past why [...]

In 2007 I played around with the PICAXE, a microprocessor sold by a non-profit in the United Kingdom that comes loaded with a BASIC-like interpreter (you can read more about it here and here). I built some lighthouse beacons and a railroad crossing light using the device. It had one drawback: I had to write [...]

It isn’t that I was dying to have a blog — in fact, I’ve tried to stay away from blogging for years.
A few months back it became clear that this electronics thing wasn’t going to go away. I was, in fact, going to be building more circuits over time and perhaps even designing them. I [...]