Sumo, Line following and robot control card project open source design and very high quality of all resources provided PIC microcontroller code and eagle diagram pcb drawings are especially line following robot prepared for… Electronics Projects, Line following Robot Sumo Robot, control circuits “avr project, microcontroller projects, “
Sumo, Line following and robot control card project open source design and very high quality of all resources provided PIC microcontroller code and eagle diagram pcb drawings are especially line following robot prepared for PCB drawing a very good high strong with a system that can go very quickly 
Robot control board previously shared “Rötkönen the” hardware ready style (see: Robot Robot development control board for your projects Rötkönen) PICAXE28X2 AND PIC18F25K22, PIC18F26K22 for use with microcontrollers have two different PCBs ..
Sumo robot software prepared by the MPLAB C18 based on PIC18F4550 microcontroller in addition to the robot body design drawing (dxf) there.
Line following robot I have 3 different microcontroller for more comprehensive PCB design on a Board with the microcontroller project PIC18F25K22 software MPLAB … C18 have been prepared with source code and library files also Pic18f4550, PICAXE28X2 and AtMega328 has been prepared with the PCB, eagle, schema for drawings
Finally, the Robot control circuit pictures
source: wiki.ottawarobotics.org alternative link: line-following-robot-sumo-robot-control-circuits.RARalternative link2 alternative link3