Robot: This robot was built by us for our final project in Humber College (toronto, Canada) as Computer Engineering students. This robot was built and designed to go through a maze. It runs through the maze once so it could memorize it's shortest path to reach the end. And it runs through the maze for the second time without having any mistake or wrong turn. It records all the information that it's getting as it moves through the maze. Basically, we had to make the robot think by itself interms of knowing if there's a wall, dead end or if it's already at the end of the maze. Specifications: HARDWARE: microcontroller -> Motorolla's 68HC11 platform -> Plexi-Glass mobility -> 2 uni polar Stepper motors driver chips -> ULN2003A sensors -> 3 Sharp's GP2D12 (analog) -> 1 paper sensor SOFTWARE Languages: - Motorola Assembler - ANSI C Language for 68HC11 Compilers: - as11 DOS version for Motorola Assembler - ICC11 V6 for Windows 95/98/NT for C Programming algorithm: - "left or else right" rule. COSTS: 2 Motorola 68HC11 Board $ 170.00 CAN 1 Transparent Plexi Glass 24/32 $ 24.00 CAN 1 Toy truck $ 10.00 CAN 2 wheels $ 12.00 CAN 6 Uni polar Stepper motors $ 30.00 CAN 5 motor driver chips $ 5.00 CAN 2 Radioshack circuit boards $ 5.00 CAN 4 Radioshack Infra Red Sensors $ 20.00 CAN 4 SHARP GP2D12 Analog Sensors $ 75.00 US 2 Paper Sensors (QRB1114) $ 12.00 CAN 1 pack socket connectors $ 3.00 CAN 1 Pack 9v battery connectors $ 2.00 CAN 1 pack Rechargeable Batteries (with charger) $ 24.00 CAN 8 packs AA Disposable Alkaline Batteries $ 55.00 CAN 2 9v Batteries $ 10.00 CAN Nuts and Bolts $ 5.00 CAN TOTAL $ 504.00 CAN PROBLEM(S): - having weak stepper motors at the beginning TIME TO BUILD: - about 3 weeks in total LINK (pics): http://www.geocities.com/washburn_rce/htmls/maximus.html Thanks for reading! Feel free e-mail us: randolph.escamilla@eudoramail.com a.deras@usa.net Email: randolph.escamilla@eudoramail.com