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Re: Wiring the Air Compressor and Pressure Switch
The pressure switch should be connected between the SIG and - pins on the DIO port. Even without the Spike functioning, the Relay status LEDs on the Digital Sidecar will tell you whether the pressure switch is calling for more air. If it doesn't light up green when you enable the robot, try shorting the SIG and - pins directly. If that doesn't do anything, it's time to look at the code.
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