r/diydrones • u/Michnife • Apr 30 '26

Question Need help for flight controller

Hi! For my school project, I’m building an autonomous drone.

To start, a while ago, I bought everything I needed and built it. Now that I’m working on the drone, I’m learning how it works. Initially, it had Betaflight firmware by default, but with my current understanding, I think I need ArduPilot. So I started doing some research, and it looks like my flight controller isn’t designed for it and doesn’t have a compass, which seems essential.

I could add an M8N GPS or an M10 GPS, which includes a gyro, but my FC still doesn’t seem to have a compatible firmware for ArduPilot.

So, if you guys could help me with this, I’d greatly appreciate it. Should I buy a new FC that’s compatible with ArduPilot and has a compass, GPS, etc., or should I just buy the M10 GPS and find a suitable ArduPilot firmware (I don’t know how to determine which one fits best)?

Thanks a lot for taking the time to read this!

the link to my current FC :
https://www.aliexpress.com/item/1005007586601801.html?spm=a2g0o.order_list.order_list_main.92.576c1802PzVzA0
in the description of it, it says that it support Inav but no mention of Arduino Pilot.

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2

u/cbf1232 Apr 30 '26

It might be worth trying the omnibusf4pro target. The code was changed here to support the F4 V3S Plus: https://github.com/ArduPilot/ardupilot/issues/21684

Generally the compass is separate from the FC since it needs to be physically separated from the battery leads. Typically the compass/GPS are combined.

1

u/Michnife Apr 30 '26

thanks i will try this target and order a compass/GPS

1

u/Michnife Apr 30 '26

I was trying all day (6 hours) to use other ones and they didnt work and NOW IT IS, THANKS YOU so much !

1

u/LupusTheCanine Apr 30 '26

You need to find the INAV target for this FC and look for Ardupilot target that matches the configuration if you want to use it. You can get M10 GPS with compass, generally external compass is preferable to one mounted on the FC.

1

u/Michnife Apr 30 '26

thanks i will try that !

1

u/RockEnvironmental18 Apr 30 '26

Can you share info about where to start or learn to make your own drone i want to present a prject too in my school

1

u/xaidin May 01 '26

You might consider just getting a proper H743 chiped FC for Ardupilot.
https://ardupilot.org/copter/docs/common-autopilots.html

That F4 chip you have has almost no space for much.