I'm in the napkin-sketch phase of a project that will be ~100 custom devices in a big mesh.
Each device is an ATMega328P on a custom PCB with 16-40 'mini' neopixels.
I plan to power the whole installation with something like this 5V, 10A supply (keeping my use of the neos subtle) or possibly a 20A supply if I need to, say, run the neos a bit brighter.
What I'd like to do is distribute the power through each board to the next, so that the whole installation has one connection to the power supply, rather than one per board.
My thought is to have two JST connectors on each PCB, one for +5VDC in, the other for +5VDC 'thru' to the next board.
Is this possible/dumb? This is more power than I'm used to, but I don't think it's so much power that I'd need bus bars, solder islands or a ridiculous (4+ oz) pour on the PCB. I'm thinking just a gigantic (~1.5cm) trace from the "in" connector to the "thru" one (and placing them close to each other).