Right now, I plan to create a PCB shield for an Arduino mega.
I plan to have it powered with a 12V LiPo battery connected via screw terminals, which will initially power the DC motors, but I want to include a 5V 2A regulator to control other smaller components. I have the schematic wired up, but when it came to the power source, it got messy.
I connected a PWR_FLAG icon to the + and - ends of the screw terminal, and have the DC motor drivers connected directly to the 12V source. Then, I have the 5V regulator connected, and have all of my other components connected to the 5V end.
As you can see, it got messy connecting all the wires together, so how can I prevent this rat nest from happening? Would it be appropriate to place a 5V power symbol at the 5V end of the regulator, and have my other components connected to the 5V symbol?
and if so, how would I apply this to my motors, since I can’t find a way to differentiate between the 12V and 5V sources.