Yeah Mike, the bolt is connected to a capacitive touch sensor circuit, like the ones used to turn on a lamp. Then that controls a relay module which sends the power to the magnet coil. It's a little "Rube Goldberg", but the idea is to make it foolproof for non 3 rail guys. This was all Gunrunnerjohn's idea, but it's pretty cool stuff. I suppose you could use it to throw switches, but I plan to use the computer for that on my layout.
Sorry to hear about your little scare. Not knowing the cause is always worrisome. A trip to the hospital is never a fun way to spend an evening.
