This was my last take on a circuit to drive the Sawyer Star, an 8×8 LED array that I have spent more than three years adapting from work from more than a dozen people — before I gave up. This schematic is basically the one drawn by Mike Ardai (N1ist) for his Color Stick project. I changed [...]

It’s been a few months since I last posted here … I don’t think there are any constant visitors who’ve been bummed out about the lack of activity, but I apologize nonetheless. Since we last spoke I threw the LED matrix project out to the Do It Yourself Christmas community to see if I could [...]

As can be seen from the dates between postings, I took an awful lot of time with this project – and yet, I never really accomplished my goal, which was to have five LEDs independently fading in and out like a candle, driven by an Atmel ATTiny13. I spent a lot of time with some [...]

If you’ve visited my web site on backyard railroad illumination, you know about my fixation with creating light that flickers as though it were a fire (either from candle or a fireplace). The first solution to that problem was to modify LED tea candles — readily available at crafts stores and even Walgreens — so [...]