Potentiometer pedal

[tjackson8685]

Hello:

I have searched the forums unsuccessfully so posting a new thread with my question. I am trying to connect a Happ potentiometer pedal to my MAME cabinet using a U-HID board.

I have soldered three wires to the three tabs on the potentiometer. These have been connected to three pins on the U-HID board
It is my understanding I need to configure the three pins as:
       (a) Analogue input
       (b) Ground
       (c) +5v

Question - does it matter which pin is configured to each of the above (e.g. does the middle tab on the potentiometer have to be ground)

Thank you very much.

Tim

[baritonomarchetto]

The middle pin is always wiper (analog out). The other two are 5v and gnd: if the pedal works reversed, reverse 5v and gnd.

[tjackson8685]

Thank you!