Hello,
I will try to help. I used a Benewake TF-Mini with a Navio2.
/etc/default/arducopter settings:
Telem1 is wifi UDP to my computer,
Telem2 is Sik radio on USB
Telem3 is Range finder on UART “-F /dev/ttyAMA0”
Serial settings:
-F is serial 5…
Set protocol according to your need (32?)
Benewake Range finder settings: