MaXimus by Randolph Escamilla

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