Argon Fan HAT gpio pin assignments

I’m looking at adding an Argon Fan Hat to a RasPi 4 - I can’t find any documentation on what pins the HAT uses to control the Fan. I plan to install it with my Uputronics GPS HAT that uses GPIO pin 18, so I can’t use the Pimoroni shim fan.

If the Argon is compatible, do I need additional spacers/adapters?

Thanks, John

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See the script that they use.
Pin 4 is one bit I have found but you should find what you need in there.

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