I am creating a bubble machine which uses a small hobby servo for dipping some metal wire into a bowl of soap water and a small motor for turning a fan.
My problem is that the arduino cannot run these on its own power supply, when powered by usb.
My question is can it run these if I purchase a 9v adapter? Or is the only solution to power one of them from a battery pack?
I know this is a pretty easy question if you know something about electronics, and I am computer science educated, however mostly with focus on software not hardware.