Quote:
Originally Posted by Dave Flowerday
There's several mechanisms built in to make sure that interference from other robots doesn't inadvertently operate your robot: 1) RCs will only respond to data coming from an OI with their team number, and 2) each data packet is protected with a checksum and if that is not valid it is discarded. With these two safeguards in place it should be essentially impossible for multiple robots on the same channel to interfere with each other and mis-operate each other's robot. If this were not true then I would expect FIRST to take this one step further and confiscate each team's radio modems to guarantee no interference (like they did back in the days of the RNets).
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1293 had an experience with this during build in 2005. We had both Ockham and Hockham (the practice robot) running at the same time. Ockham had its team number set to 1293, Hockham was set to 1294--but we had forgotten to switch the channel on one of them. Both would barely even twitch while on the same channel (we finally came to our senses and flipped one around).
While it would seem to be good that neither robot moved on the same channel (given that the field channels are inaccessible by teams), I fear for the time when someone pegs the joystick and the other team using that channel powers down the robot.