Microcontroller on 2 different board..

In this project..The controller at the TX&RX at PC and TX&RX at robot point is a bit different..This is because controller at PC only interface with XBee and LCD only..While on the robot,the controller will interface with motors,sensors,LCD and any additional applications..It is a bit tough to make a small controller circuit to be fitted on the robot base..I will make it smaller as possible..This is to ensure that the robot did not carry too much load on top of it..PR 23 by cytron is a good example to follow..Because its provide head to toe instruction on how to build a robot..