Thanks Alan.
It is either something like that, or a short somehow via the chassis (unlikely - but I will be checking it).
Last night we did try using the Relay Out ports, which seem to work. However the rules state that only the Digital Output can be used.
We modified a standard servo cable so that it has one end normal (at the RC) and the other (at the Victor) routes the white (SIGNAL) wire to the centre conductor. The black and red servo wires are not connected to anything.
This assumes that the PWM cable going to the Victor supplies the ground return - however since I cannot find a schematic for the Victor (or the RC for that matter), I don't know if this is correct. But IFI Robotics FAQ for the Victors does state:
Quote:
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Only connect to the center pin of the 3 pin header on the Victor to control Brake/Coast with a Digital Output pin on the RC unit. A high output will put the Victor in Coast and a Low will put the Victor in Break Mode. Your PWM cable will connect the two grounds together. Be Careful, some of these pins connect directly to the uP and miss wiring or shorting can damaged the uP. We can not comment on whether it is FIRST legal.
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