Description : it is a robot which can avoid obstacles specifications : it is made by 2 motors ,2 h-bridge ,many digital ICs,3 wheels it has 5 IR sensors it works by 6 AA,and 9V battaries functions : moving in all directions without colliding by the IR system time to build : about 2 weeks cost : about 80 L.E (25 $) problems : it can't aviod combletely black objects Email: sayed_maha@hotmail.com