This app makes your phone behave like MAVLink vehicle. You can connect to it using QGroundControl over UDP. The device must be either connected to the same local network, have a Wi-Fi hotspot running or a public IP address. You can also try connecting to it while using VPN. Once connected, the phone starts emitting heartbeat and information about device’s attitude, location and battery. MAVLink UDP Android Example
From http://diydrones.com/xn/detail/705844:BlogPost:4090221
from
https://worldbydrone.wordpress.com/2020/04/14/mavlink-udp-android-example/
From https://jefffraley1.blogspot.com/2020/04/mavlink-udp-android-example.html
Jeff Fraley 