Compressor:
Ah, the compressor. The heart of your robot's pneumatic system. It's function is simple: compress the air and push it to the accumulators. It is controlled by the pressure switch. Before you shoot off and wire it up, follow these rules and tips.
First off, the compressor has to be controlled by the robot controller and nothing else. The compressor is powered through a Spike relay module and protected by a 20A circuit breaker. The minimum wire size allowed is 18AWG, but I prefer 14AWG because of the high starting current of the compressor, especially on an already charged system. Also, pop out that yellow fuse and put in a 20A circuit breaker. The high starting current of the compressor is known to blow the fuse. It WILL happen if you don't replace it, and the worst time to discover this is during a match.
So now you should have your Spike with the 20A breaker, some 14AWG wire, and another 20A breaker. You'll also need some female quick connects to wire it up to the spike (4 total.) Wiring the compressor is very simple. The red wire from the compressor goes to M+ on the Spike. The black wire from the compressor goes to the M- on the Spike.
Now wire the Spike to the Power Distribution Board (PDB). The 12V will connect to a red tap on the PDB with the breaker rating at 30A max. Wire the GND to a black tap next to the red tap you just wired up. Plug the other 20A breaker you have into the spot you just wired.
Power on the system. The Spike should light up orange, but the compressor will NOT run yet.
Find a PWM cable and connect the Spike to the Relay 1 port of your Sidecar. You may pick another port if you're team is confident in programming. Make sure everything is connected properly. (SIG should go to the white wire, (-) should go to the black wire. The black wire is labeled on the Spike.), otherwise you won't be able to control your compressor.
Refer to the PDF below for an image representation:
Compressor Wiring.pdf