🚀 go-pugleaf

I built up a little chase light controller from salvaged parts
last year and it worked fairly well. It's simply an oscillator,
a binary counter, a BCD to decimal decoder, and four solid
state relays. The relays are the only expensive parts and they
could probably be replaced with a cheaper alternative. By
changing the wiring of the relays, various chase effects can
be generated. This year, it's driving four strings of lights
attached to a nine foot star on my roof.

There is a specialized light controller chip which drives relays
for a lot of different effects but I decided it was overkill
given the cost and complexity of the circuit. ( but then I'm
driving single strings of lights with 20 amp relays, if that's
not overkill, what is? :-))

More info if you want it.

JS