[AdrielPatrick]

Thank you very much for all the fast replies! It will really help me and my teammates troubleshoot this and other future problems.

Originally Posted by magnets

To make it easier to help you, it would be nice to see pictures of you compressor, pressure switch, spike, and DSC.

And yes, gladly before we left the shop, we actually took pictures of the digital sidecar, pressure sensor, spike and the compressor.
here's the picture of our compressor, the spike, and the digital sidecars.

Originally Posted by nathan_hui

Is the pressure sensor working? Double check it with a multimeter, and make sure you're looking at the sensor the right way (i.e. NO or NC).

Are the wires wired correctly? It's not unheard of for wires to jump one receptacle over during assembly.

When you say the spike LED turns off, that worries me. Is that still happening? http://content.vexrobotics.com/docs/...uide-sep05.pdf is the Spike Relay user manual; it looks like the PWM port on the sidecar may be misconfigured.

I checked the pressure sensor with a multimeter, NC is connected to black, and N is connected to white, as seen at the picture linked above. We're getting about five volts from the red wire and the black wire that is connected to the pressure sensor.

The pwm attached to the pressure sensor routes back to port 14 where it is configured. We'll double check the wires thank you.

Not anymore, I believe it's due to bending the pwm pins. The user manual helps a lot too thanks.

Originally Posted by FrankJ

Running while disabled rules out the pressure switch. Check your wiring.

I see. We'll double check the wiring, I posted pictures above of our wiring on the digital sidecar, spike, and the compressor. We used a pwm to connect the pressure switch to the digital sidecar, black is connected to NC while white is connected to N.

Originally Posted by RyanCahoon

Agreed. Also basically rules out programming.

Make sure the spike is wired to a relay port and not a pwm port. Could also be a bad digital sidecar, sidecar cable, or even digital i/o module, though the first two components are much more likely.

By pwm port, do you also mean digital i/o port on the digital sidecar? Please check my pictures above. I believe we've always plugged in the pwm for the spike in the digital i/o port not in the relay port. Our programmer told to us to put it in Digital I/O port 8. We know that our compressor was working correctly before, so hopefully it's not bad components.

Originally Posted by ablatner

On the bright side it's not the pressure switch or programming. We had an issue where it would turn off the compressor 9 times out of 10, but that one time it would keep going. Even after changing out the switch and all the wiring. It sort of just fixed itself by competition... Anyway, check if it's in a relay port with the right polarity, and if not, switch it. If you replaced the spike, the only things left I can think of are the digital ribbon cable, sidecar, and the cRIO. I highly doubt it's the cRIO, but these things have ghosts in them.

Yes, we also know it's not the pressure switch because we replaced it with another one, and also the programming hasn't been changed. And I'll figure out why we plug in the spike on the digital i/o instead of the relay ports... thanks!

Originally Posted by Al Skierkiewicz

If the light goes out when you plug in the PWM and the compressor is still running you have a wiring issue. The LED off indicates that both outputs are switched to +12 and that would not run the compressor. I suspect the wiring was changed or one of the wires is pinched and is seeking return through the chassis and some other fault.

I agree, the LED isn't off anymore, and I believe that was also due the PWM pins being bent when we try to put it in the spike. But after we plug it in correctly, that is when the compressor doesn't turn off even when disabled.

Thank you all for the time!
-Patrick