How to power up Laser Harp

Other Hardware Motors, Mechanics, Power and CNC
1

I am constructing a laser harp with 5 separate sections. Each section has an Arduino and one section has both Arduino and Raspberry Pi connected to each other. i'm trying to include some speakers as well... How would I implement powering up the system?

I was thinking to use ACtoDC adapter to convert 120 VAC from the wall to about 12 VDC and have a DC bus to run wires and power up each section of the laser harp?

Thanks!

2

The things that have to talk to each other should be on the same power supply. That's not going to be possible unless you're using 3.3V Arduinos.

The basic 5V Arduinos don't work well on 12V. If you can, use 9V or less.