Guided mode without gps with sonar and px4flow


i setup a sonar sensor and px4flow and want to arm the vehicle without gps in console
but when i send arm command show “wait for gps lock” message .
how can i arm and takeoff the vehicle without gps and use px4flow and sonar instead?


How do you send the ‘arm’ command?

As long as Px4flow has been correctly integrated with PX4/APM and FlytOS is receiving valid Position Telemetry from the autopilot, it will allow you to takeoff.

I would suggest you to use QGC/Mission Planner for initial Px4flow setup and testing. You can send Takeoff command from either the two GCS. Once confirmed that everything is working fine, only then please send any commands via FlytOS.