pic based robot for metal detection with wireless camera

hi everybody....i am doing my final year project on robotics which can be used in military applicatioins for bomb detection ans disposal,,,,for demo purpose i choose metal detecting sensor....i face so many problems..
1.my robo vehicle(consists of two dc motors) must move according to the keyboard up,down,left,right keys
with serial communication rs232...i m using two pic16f877a with rws & tws 433mhz txr and rxr....when i press these any one of keys my robo vehicle should move in front ,back direction....i simulated motor coding that is in receiver pic side it is running...transmitter side coding s the problem....
will you please suggest pic coding with procedure or circuit how to transmit via keyborad keys to vontrol robot vehicle?.........[pls urgent..some more days only i have,,,to submit project]

I think you are in the wrong section

here is the right section (microcontrollers)

https://www.edaboard.com/forums/31/