@Spatz, QCA4531 == QCA9531 v2
how to contact you?
I am in a similar situation as well as a lot of other too, some already know, most don't.
Honestly, I already digged into the Ableton Link SDK pretty deep now.
Interessted i nsharing informations or maybe colaborating?
Thanks in advance! (Already did a redesign of a raspberry based solution)