So, to clarify, should the trackball just be wired to 3 stand alone buttons that are not at all connected to the Xin Mo board then?
The three trackball button inputs are left-mouse click, right-mouse click, and center-mouse click.
In almost every case they are
not needed and they are
not recommended.
You can connect them to buttons if you
REALLY want or
ABSOLUTELY need them for your setup, but the general consensus is that mouse buttons present potential problems when kids or drunk guests are playing unttended on your cab and get into things that make a mess of the painstaking configuration that took you 100's of hours to do in the first place and that can take 1000's of hours to fully find and fix.
I had the 3 wires connected to buttons that I'm using for other purposes like fire, thrust etc. I have the one ground wire (black) soldered to the ground connectors on those three buttons (it only has one ground wire)
A good rule of thumb is to not connect the inputs from one encoder to the inputs of another encoder.
I'm guessing I need to remove them and put in 3 other buttons just for the trackball that are not connected to the XinMo? Or what 3 buttons should I be connecting it to?
Not every input needs to be connected to a button.
Just leave the QD wires from the trackball disconnected.
If you're still tempted to connect them to the Xin-Mo, chop them off and melt them down using magnesium, thermite, a local steel foundry, or the next North Korean nuke test.
Scott