MAXOFLIFE:
Again, very rough diagram. Is this a viable way to power the two Arduinos?
Yes.
MAXOFLIFE:
What if I added a third one (Arduino Micro) in the exact same fashion as the other two?
No problem.
MAXOFLIFE:
Edit: Whoops, just realized the Arduino Micro doesn't have a DC jack and that I would have to power it with the VIN pin. Well, that complicates things.
No, it makes it easier. If you have a 5V supply then you connect it directly to the 5V/Vcc pin.
nb. This applies to the Uno as well. If you have a 5V supply you do not connect it to the barrel jack. Connect to the 5V pin
MAXOFLIFE:
Thank you for your time! XD
Thanks for remembering that our time isn't free.