I use (and love) my PBF4 to control LightKey, a DMX lighting system
https://lightkeyapp.com
I configured the LEDs of some buttons to be on when the controlled button is pushed in LightKey.
But the state of the LED is basic, only cycling (push -> on ; push again -> off).
Problem with this simple approach: the controller and application states can become unsynchronised.
It happened a few times that the PBF4 was unresponsive, and had to un-plug / re-plug => everything un-synchronised, which is not easy to manage in the middle of a show.
And then, it becomes very confusing very quickly (LED indicating freeze button blinking but freeze feature disabled for example).


