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Unread 12-07-2006, 20:07
Ken Leedle Ken Leedle is offline
College Student
FRC #0706 (CyberHawks)
Team Role: Alumni
 
Join Date: Mar 2006
Rookie Year: 2004
Location: Wisconsin
Posts: 37
Ken Leedle will become famous soon enoughKen Leedle will become famous soon enough
Re: Range finding/sensor advice

Quote:
Originally Posted by FIRST JerseyKid
So using pic chips and electronics we built our own driving boards and hooked them up to sensors and its working pretty good now. We made H bridges and used op amps and did alot... If you have any questions about how to do anything with the sensors or code email me at FirstJerseyKid@comcast.net. Im programming my car in "restricted" assembly.
My first robot was very similar to this. I took the top off a RAD robot and used the base as the base for my autonomous vehicle. I designed the entire control system based on two PIC18F458s (I wasn't ready to tackle 80 pin TQFPs as a sophomore). It took me five tries to make a motor controller that met my requirements. It was able to navigate effectively in my house using a polaroid ultrasonic ranger on a servo platform and bumper switches. It also had IR proximity sensors but I found the sonar to be more effective. It took me forever to write the code for it in assembly. About a year ago, I decided to rewrite the code using the student version of the microchip C compiler. Took me a half hour to write the code that took me weeks in assembly.