This Red Rover project was created by Rick Winscot, Pennsylvania State University Professor.
It is designed to be an inexpensive autonomous rover that anyone (8+) can build! It contains an easyRadio eRIC RF module on an easyRadio Arduino Shield.
There is some 3D printing involved, easily-sourced hardware, and a tiny Atmel microcontroller. The microcontroller can be upgraded to an Arduino™ Minior Arduino UNO.
The design is expandable and highly configurable.
Parental supervision is required.