Yes I have this too, and on the X,Y axes as well. There's a thread on this issue - it's the joystick not the adapter, not clear whether age related or was always there. Someone did write a filter for it but the tradeoff is lag. Personally haven't found it (the jitter) a problem in games.

Good to hear

rage76 wrote: ↑Mon Nov 06, 2023 2:16 am Question: Do you use the 10k resistor ?
VCC
|
10k-PIN
|
GND

Are these the additional axsis ?

Yes those are the potentiometers for extra axes. You would need to build a firmware that enables them on the Micro.

I've now included the variants in the v0.5.beta1 linked in my post above, including the Micro/Pro Micro targeted one. Juchong did a nice guide with schematic, PCB layout and instructions for flashing the firmware to the Pro Micro. I used the same modification to Button 1 GPIO. Note the firmware ...

I can report some progress! Since I managed to get an adapter together I was hooked. I saw an opportunity in that some of the effects were not working really as I would expect them to. So I've been incrementally testing and improving the translation of effects from USB to MIDI. I made significant ...