I made this for a bit of fun. It has an Atmega328p running Arduino connected to 4 motors (2 driving one side), an LCD and buttons for the interface. the 3D printed parts came
thingiverse by timmiclark. The design is good but needed to be modified to make it work. Overall it's a good design and with some improvement will be awesome.
Further development
Down the track when I have the to development more, I would like to add a robotic arm with a remote control.