Tom wrote:I tried at least Poti/Foot Controller and Alternative Input On/Off and a bunch of low and high values.
There must be some reasons for changing settings. E.g., did you set AltIn to No/Yes for any particular reason?
Question of the day: Does the blue LED flash, if I change the value of the poti?
The MIDI LED flashes only when MIDI messages are being sent, e.g. CC (for position changes) or Note On (for for chick/splash) messages.
My advice is to read carefully MegaDrum Documentation, at least
"HiHat Pedal settings", then explain how you connected your pot, configured it, what doesn't work and then I'll be able to help - after all the problem may be as simple as that you used the wrong HiHat pedal input or the Documentation is incorrect or lacking (very likely) but I must know what you did first.