I have a bunch of old LCD VGA monitors and plan to build a monitor wall with arduino behind every one of them to show different statistics. I was thinking if I could potentially tap some DC power from the LCD PCB somehow to have the power for Arduino. I might be asking too open question here, but I guess the AC gets converted to DC inside the monitor somewhere, so maybe I could steal some for my board? Silly?
The alternative is to do PoE as every arduino will have that Ethernet.