Powering arduino off a LCD monitor


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.



No not at all.

But it all depends on the monitor and it's power supply, and what will be appended to the Arduino?
How much power does that draw and how much can the LCD deliver?

Be carefull as the inside of a monitor can have 230 /110 Volt lines!

some LCD monitors have integrated USB hubs.