Hi I would like to state, Avare works fine on Samsung Note 8 phone , Avare external IO connects to the ADS-B on port 4000 to Echo ADS-B from Uavionics and the Autopilot ( Ezpilot from Trio) output connects automatically to 2 types or Bluetooth RS232, it works on
CableMax Bluetooth to RS232 9 Pin dongle this is has a good antenna , good range , case and powered through USB 5v $40. it also works ok on the cheap version of Bolutek BLK-MD-BC04_DEMO but this board is bare PCB, does not have a cover box and need 3.3 voltage supply on a tiny plug, not practical , the cost of adding box and finding tiny plug and drop down power supply from 14 v a will work out the same as the expensive one, not ideal but it work . The only think needed on these RS232 cable connection from the autopilot side on the Female DB9 is to set it up to Null Modem with loop back handshake , jumper connect pins 1,4,6 and 7,8. 3 is data out and 5 ground.
I would like to say Thank you for the software developers and Thank you for the quick replies on this forum that I needed to set it up. "Magic work for aviators"