RC Hardware Light Orange

[arnagaraja]

Everything was working fine the night before play day. But on play day, we noticed that our autonomous mode wasn't working because our wheel sensor was off, and the RC Hardware light on the processor on the robot was orange. We tried taking out the digital inputs, pwm's, backup battery, etc. and the light was still on. Any ideas?

Does anyone know what the orange light means in the first place?

[jgannon]

The only time I have run into that problem is when the backup battery is low, dead, or missing. Have you charged it lately?

[arnagaraja]

The only time I have run into that problem is when the backup battery is low, dead, or missing. Have you charged it lately?

Actually, we haven't. Thanks a lot, that might just solve our problem -- but do the digital inputs draw power from the backup? If not, then I still don't think it explains why our sensor died.

[ConKbot of Doom]

According to the top of the RC, a yellow RC hardware light meanse the +5v output is low. (The yellow looks like orange, they probably should have called it orange...)

Since an internal regulator outputs the 5v for the sensor lines. Either that is broken (hopefully not) or you have a short somewhere, shorting the +5v to the gnd. Un-plug all your stuff on the digital-IO and the analog ins. Then see if it is still yellow/orange. If it isn't then start plugging them back in, see which one causes the fault.

You don't have to worry about the pwm outputs, they get power from the backup battery.

[arnagaraja]

I'm pretty sure we unplugged all of the digital-IO and analog ins and repowered...and the light was still on. What do you think I should do if that doesn't work??

[devicenull]

Metal shavings in the RC pins. Thats what did it for us.