Hi, Lefty. Thanks very much for the clarification. I think I have a better understanding now.
So it sounds like a separate power source for the vibration motors will probably be the way to go. Can I just use a ~3V DC power adapter for the motors? If so, how many amps will it need to provide if I want to have the option of potentially running all 5 vibration motors at the same time? The vibration motor datasheet (found on the page I linked to in my original post) says that each motor can draw up to 430mA (although each has a typical operating current of ~130mA). So is it the case that the number of amps they require will sum? (e.g., 2 motors running simultaneously would need up to 860mA?) If so, then I'm guessing I'd need a power adapter that can provide over 2 amps, right? Or does it not work like that?