[roboruler]

I’m going to be honest here. You are asking a lot of questions and it really seems like your knowledge in robotics is lacking. I am somewhat surprised that you received a grant from your college for a robotics research project without knowing that you need to use gearbox on a motor to increase the torque and reduce the speed and you don’t even know what a motor controller is.

Before you make any more design decisions, you really need to take a step back and decide your design requirements.

For example you mentioned tracks, do you need really need tracks or will wheels suffice.

How fast does this robot need to travel, what terrain does it need to cross, what range( battery capacity) does it need to have etc.

Another thing to consider is will the grant be large enough to be able to afford the necessary components, wheels represent a huge weight, complexity and cost saving over tracks