This was my first robot I have ever built. It was designed as a prototype for another robot of mine (BORIS) and a test bed for the circuit I was using. This robot uses two frontal mounted bump sensors mounted on the lowest level and to light sensors on top. It uses a PIC16C56 processor which can be easily program to allow the robot to drive around looking for a high light source while avoiding obstacles. I would recommend this style of robot as a good test bed for circuits as it is really cheap. I am currently remaking the circuit to test out some BEAM style circuits as I think this is an interesting subject with alot of potential. A quick overview of the robot:- Processor - PIC16C56. £10.00. Drive - Two really cheap DC motors from a school shop. £2.00. Sensors - Two LDR's and two hand made bump sensors. £1.00. Email: denis_costain@hotmail.com