With the advance of affordable 3D Printers, the home brew R/C vehicle community is booming with people making and designing their own parts. However, making your own RF controller is a different story.
Armed with a pair of Arduinos and nRF24L01 modules, Mujahed has a good start on one. On the transmitter side he’s reading a joystick module with an Arduino Uno and transmitting with one of the nRF24L01 modules. On the receiver side is another wireless module feeding an Arduino nano that is tied to a few servos. Everything on the car side is running off of a standard r/c car style 1800mAH battery.
More info and wiring diagrams on Mujahed’s site. Check out the video after the break.