ardupilot VS ESP32

They are widely used in narrow circles :)

Two of (arguably the best) open source RC aircraft flight controllers (ArduPilot and PX4) are using extended Kalman filters in their state estimators (essentially sensor fusion that provides attitude/position estimate):

https://github.com/ArduPilot/ardupilot/tree/master/libraries...

https://github.com/PX4/PX4-Autopilot/blob/main/src/modules/e...

I'm not that familiar with cleanflight/betaflight/inav scene to know what the FPV racer flight controllers use.

2. https://ardupilot.org/

Trimble also has some nice stuff, I think the BD940 is interesting. I do not know if it's recommended or not, but Ardupilot has a driver for the Septentrio GPS (https://github.com/ArduPilot/ardupilot/blob/master/libraries/AP_GPS/AP_GPS_SBF.cpp), as well for Trimble GPS (https://github.com/ArduPilot/ardupilot/blob/master/libraries/AP_GPS/AP_GPS_GSOF.cpp). So people have used these brands for drones.

For programmable open source autopilot: Arduino > Ardupilot (https://ardupilot.org).

You might also want to look at something like Ardupilot

I'd like to emphasize the reference to Ardupilot bc there is a lot of material already developed there: a lot about navigation and guidance from UAVs, and the low-level stuff. Check this out

DroneBridge on the ESP32 is probably the easiest way to get started with WiFi telemetry. It functions just the way a SiK radio (or USB connection) would.

I encountered this project: https://github.com/DroneBridge/ESP32 and I saw that the web-page works flawlessly and the information on page change without refreshing the page even on submit.

I encountered this project: https://github.com/DroneBridge/ESP32 and I saw that the web-page works flawlessly and the information on page change without refreshing the page even on submit.

There's DroneBridge but it only runs on Raspberry Pi and the ESP32 which is the ESP8266s bigger brother.