Oh, and it talks…
Egads…any way you can sum it up for the ADD set? :bigsmile:
Shine LED between two mountains, modulate LED with sound, pick up signal 171 miles away. Oh, and do it both directions.
Follow that link back a level for more things done with blinky LED.
BTW, somewhere he mentions that he build another sender using a big honkin Lumunus Phatlight LED driven at something like 20 amps.
how many fauxons would we need to beat this distance i wonder…