I am currently using an NI 6001 USB to supply voltage to a voltage-powered piston in order to extend and retract it. For lab set-up reasons, we are stuck using the Digital Output side of the device. I am able to get the piston to extend but in order to make it retract I have to take the wires out of the device and manually reverse the polarity. Is there a way I can have this polarity automatically reversed within the electronics, by say, a click of a button?
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