MobiFlight Community Support

Hi,
I’m making a prototype using 1 dual rotary encoder incl switch, and 2 buttons. The buttons control whether the encoder changes com1 or nav1.

The input actions on the buttons set a MobiFlightVariable, EncoderFunction, to a String “COM1” or “NAV1”.
I have 4 encoder input configs: outer and inner ring, with precondition set the mobiflight variable EncoderFunction = “COM1” and the same for NAV1

This works as expected!

But, 2 issues:
1) when I turn the encoder before I have set the variable with a button press, MFConnect crashes.
2) input config for encoder button, to switch active frequency: when I add the same precondition checking EncoderFunction = “COM1”, Run MFC the software crashes again.

Any idea why this happens?
Could it have something todo with using a Uno (Mega pro mini is ordered)

I found the issue! Posting here for future reference.

On Run of MFConnect, all buttons are Released. This made the Input Config for my Encoder switch run, but that has a precondition on the varialbe EncoderFunction.
Because no button was pressed yet, the variable wasn't set yet so it didn't exist. And a precondition on a variable that is undefined causes a crash.

I fixed it by adding the same variable set action on my COM1 button Release as on Press. This will set the variable on script run to COM1, so that is now my default starting value.
No more crashes prototype working, onto a button box with many many functions !

Loving this new dimension to flight simming