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 [...]

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 code [...]

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 that [...]