RE: Brushless Motor Question
Yup. You can't just feed it power like a brushed motor connected to a battery, to the best of my knowledge. Sorry.
The robots our kids build have motor(s), speed controller(s), servo(s), receiver and battery(ies). The transmitter sends signals to the receiver which passes them on to the speed controller if necessary, which acts like a throttle for the motor. Servos control arm movements, picking things up, steering, etc. Brushless motors require speed controllers, you can't just turn them on and off by supplying voltage through a switch.