I teach high school robotics and we have been doing stuff with making cardboard robots. I give the kids in my class four gearhead motors, plastic sprockets, plastic chain, cardboard and glue sticks, axel stock and the rest is up to them. I guess if you got down to it they are not making robotics more like rovers. Right now they are tethered with cat5 cable. It is a tangled pain of a mess that is mediocre at best. Next year I want to move them to completely RC. However, I do not know what I need to buy to make this happen. From what I understand I need a radio, a receiver, and two motor controllers to do what I need to for each setup. Is that all that I need?
I have picked out the following for next year to make two setups:
Spektrum DX5e 5ch Radio x 2
Sabertooth 2X12 R/C Regenerative Dual Channel Motor Controller x 4