I'm pretty new to a lot of robots and electronics engineering. I'm still working on understanding power with the Arduino, and because I don't want to toast any of my components I'm treading lightly. I just want to confirm that the motor shield from Adafruit will power the robot chassis w/ gearbox I was looking at purchasing:
Pololu Round Robot Chassis: http://www.robotshop.com/pololu-round-robot-chassis-kit-solid-blue-3.html
(Yes, not direct from Pololu, since they only sell one with a serial server controller that I'm not interested in)
Adafruit motor shield: http://www.adafruit.com/index.php?main_page=product_info&cPath=17_21&products_id=81
I will be hooking up a batter to the DC terminal on the Ardunio to power it, and will be plugging in another back -- type/size to be determined -- into the DC terminals on the motor shield. I don't want to even consider running the Arduino and motors off the same supply.
In the end, I want to build a basic robot -- at first it will just do a routine, then maybe follow lines, then I'll start playing with sensors and RC stuff. I think this platform will give me a good start. If anyone has a better suggestion for a chassis, please let me know. It's either this one or the 2WD chassis from DFRobot.