schematic for robokit

[suvidha]

hey guys
m a computer science student and i have been given the work to design a schematic for a robokit that contain many sensors like touch, line following, ultrasonic, light sensor. i have to to all the programming ..... and for that i need to have the schematic drawn first .... m not good at it ... please anybody can help me with the schematic diagram using 8051 MCU