this post was submitted on 22 Jan 2025
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There’s no way that charges.
Sure there is. A display signal is essentially just current through specific lines. The way the current is routed makes no sense, but there will definitely be current running through the wires. The only thing needed is for the charging pin of the micro-usb to be connected to any vga pin that transfers current. The rest is just the magic of conducting wires.
It won't charge quickly though, I'd expect it'd take hours just to charge like 20%.
I guess the vertical and horizontal sync are +5, but how would that be connected to the +5 on USB? Seems unlikely but possible I guess?
Nah, pin 9 is reserved and not needed, but when implemented, offers 5 volts power.
https://vhdl.us/book/Pedroni_VHDL_3E_AppendixI.pdf
Fair enough. Still nuts.