Can this be done?
You could make a 5V supply from that 12V module; a regulator, a couple of capacitors and probably a heat-sink. Here again - more stuff to buy.
"Waste"? Stop already.You got me, man. I didn't cover every contingency, every possibility, every conceivable option.Bad, Bad, Bad. Bad.All Replies must be exhaustive - I will keep this in mind.