You can already connect FLARM and radios to VFRnav via a Bluetooth interface. Some devices additionally support serial RS232 interfaces, e.g. the SteFly Nav.
Via these interfaces it is possible, for example, to receive traffic data directly via cable from a FLARM as NMEA data and to control the radio directly without a Bluetooth adapter.
Currently, in VFRnav only Bluetooth and network can be selected as interfaces. It would be a great upgrade if the serial interfaces could also be used.
I want to give one last try with the upcoming update
Technical background:
My suspicion is that the superuser version of the Android system on your device differs from the one on my test device back then. On other Android devices with a serial interface — for example the Naviter Oudie N — we were also able to successfully test the connection.
With the upcoming update we will therefore include a change that also supports older superuser versions.
So we’ll see whether the serial connection works on your SteFly with a version >4.30.3.
If not, the last option will probably be a flight to EDWQ
