Hi, is there a document describing the use of the new collision detection feature?
I have a "Butterfly Connect" connected to a TRX1500 which is PowerFlarm compatible
and successfully shows traffic on the Butterfly external display.

But whenever I connect the iPad the Butterfly-WLAN (which seems to work) and go
to "Setup" -> "PowerFlarm" -> "Flaying" I get a message box with:

"Lost connection to your GPS"

The "Butterfly Connect Key" is as printed on the "Butterfly Connect". On the second
connection try I get "Failed to establish a connection with the Butterfly Connect unit."?

On the TRX1500 I can choose between different protocolls: "PowerFlarm Display" or
"Garmin TIS" which one do I need?

+ 1

Problem solved. The serial from the ButterFly Connect to the TRX1500 had swapped TX/RX lines.
The WiFi connection is stable. Maybe on a fair that is a problem, because the "ButterFly Connect"
can only work with one WiFi device at a time. So if 3 people have an iPhone in there pocket trying
to connect you have a problem.

Next good thing is, that the TRX1500 is being used as GPS source. So I don't have to worry about
my unreliable internal GPS or the buggy bluetooth connection to my Dual GPS.

This is a picture of an ADS-B target that is no factor:

If you tap on the little green plane you get some more information:

Hi - I am also fitting this but do you know if a bluetooth connection is possible?  My iPad will be connected to my wifi hotspot so I don't know how it would then also connect to the Butterfly Connect.

The Air Connect (as it is now known) works over Wifi. You need to connect to its Wifi hotspot to use it.