Need to extract drone's realtime position (lat/long/alt) from mission planner gcs

Ground Control Software Mission Planner
1

I want to extract drone’s realtime gps positional data to send it to other microcontroller like ESP/Rpi/Arduino to control servo motors which rotates my antenna towards the drone.

Crossbow / ardupilot antenna tracker I know, but I want to build my own system.

can anyone guide me how to proceed with these?

2

Sure, use pymavlink on the ESP/Rpi/Arduino to decode MAVLink messages from the drone.

3

Thank you for your reply.

Does that mean that I have to put my other microcontroller on the drone?
Then it is not possible, I want data at ground, my microcontroller will be fixed on ground to give commands to servo motor.

Can you elaborate more if this is possible?

4

On the ground use mavrouter to route the MAVLink datastream to both your GCS and your ESP/Rpi/Arduino.

Then use what I said above to create the code for your ESP/Rpi/Arduino.

5

Thank you.

can you provide more information on hardware required, wiring and coding that I needs to do for your proposal.
I am not familiar to these things so your any help will be greatly appreciated.

6

Get a cheap Pixhawk board and use ArduPilot AntennaTracker — AntennaTracker documentation