WELP, this is a few months late from a different guy, but I can give some simple directions. On these, you’ll find five microswitches (one in each corner for directions, then one on the shaft for the button) each with 2 NO contacts. Hook GND to one terminal of each, then hook a separate arduino pin to each of the switches on the other terminal. Then, treat each pin like a normal button. Remember that the switches are opposite the direction of movement (so down actuates the top switch &c.).
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