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Originally Posted by Doug G
We do the same thing with our shooter, but just simply use a couple of encoders connected to the RC and Watson's velocity PID code with some tweaking of the constants and are getting pretty good results. So why use the separate PIC?
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If you use the camera you are using a peripheral controller. In the 80S there was one controller chip in your car. Now, in the next century, I am sure there are at least 6 or more through out the new cars that communicate using the CAN networking protocol. My team has not utilized all of its computing power yet but ideally this would have been the way to go. Such as to off load some of the computational load for the shooter/camera combo to keep the master RC reasonably stressed. It is complex from the software standpoint particularly if you have several development environments ( IDE's, compilers, assemblers, etc.) to work with but the robot may be more effectively controlled by breaking down the control tasks and distributing the workload to peripherals closer to the effected component. Someday. LRU.