A very weird digital sidecar problem...

[pfreivald]

So our robot was working perfectly yesterday on the practice field, but not today: when we plug in our two encoders to the digital sidecar (DIO slots 1-4), the 5V power on the sidecar fails (and thus we lose all pwm control and become a cute purple brick). Without the encoders plugged in, there are no shorts between power/ground and power/signal...

We tried replacing the encoders, the wires from the encoders to the sidecar, the sidecar, the cable from the sidecar to the bumper, and the bumper... Even replacing *ALL* of them yielded the same result.

Any ideas? It's rather too late for FLR -- we've established ourselves as a rather good fender defense and are for this regional comfortable in that role -- but for Buckeye in two weeks it would be nice to have actual speed control on our shooter...

We're stumped. Any assistance anyone could provide would be most appreciated.

Thanks!