Powering Multiple Modules with Repurposed Wall-Wart Supplies

telstarmagikistferrari

Hello all!
My question concerns how people tend to go about sourcing power for modular lunetta instruments. I believe I have around 10 modules. I have a 12v 2.5amp supply -- could I just put the ground and +v each to a little strip of perfboard and simply connect the modules thus? And would this be enough juice to run all of my modules without issue? Open to notions as to whether something closer to 5v would be better or worse. Thanks y'all.

Marck

PHOBoS · Posted: Sun Jul 24, 2022 7:12 am Post subject:

yep, that'll work, it's a method I've used myself too. Leave some space between V+ and GND, so either use seperate sections
of stripboard or leave a couple of unused tracks between them. Makes it easier to solder without worrying about shorts.

5V can be useful if you want to interface it with other things that run on 5V like an arduino and/or TTL logic. The downside is that
the chips can sink/source a lot less current so not ideal if you want to drive LEDs directly.