First thanks to this forum for letting me toss my troubles in the air

First thanks to this forum for letting me toss my troubles in the air to get some good feedback. I think I’ve solved all of my logic problems.

. My new problem is voltage drop over long distance which everyone warned me about. My ws2812 5v strip has the usual 3wires for the lights and in addition a pair of positive and negative bus wires I’m assuming to boost along the way. I’m not using those bus wires but instead using 10 gauge wire from my 30 Amp power supply to inject every 5 meters.

Without my bus wire my voltage drop is as bad as 2 volts after 10 meters. With the 12 awg bus wire at each 5 meter connection i can get to 15 meters but by then I’m still only reading at 3.8 volts.

Pretty heavy gauge wire to see that kind of resistance no? Ultimate goal is roughly 25 meters. I can split my circuit in half to reduce voltage drop but I’m confused how I’m losing so much even with such a high gauge bus circuit

Apparently for longer runs, you need stupid thick gauge wire: https://static.rcgroups.net/forums/attachments/3/0/9/8/5/3/a6448405-101-wire_chart.gif
Is it reasonable to have multiple power supplies close to each injection point and convert down to 5V closeby to avoid more than a few meters at each point?

It will be better to have your power supply close to your strips and have a long wire to bring the AC current. Or have a higher DC voltage to reduce the current and then have a step down voltage circuit. Because of ohm law the more current you put the faster your voltage will drop. Maybe try sending everything under 12v/24v and then before the strip reduce the voltage.