A small electronic board to simulate a lighthouse in a 12vac “Malibu” lighting system.
Looks nice Tom. Going to share the ‘How-To’ with us. 
Like most everything I make, it’s a program in an “AVR” chip.
Dave put it in the lighthouse last night and it looks very nice there. Should have made a video. It’s at the Botanic.
Ah, well. Still nice work.