Blitz H743pro baro problem

ArduCopter Copter 4.7
1

Good Morning. I’ve got a problem with my Blitz H7 pro Flight controler.

I flashed ARDUCOPTER firmware several time (and different type of firmware, beta, latest…)

I always have the same problem:

Config Error: Baro: unable to initialise driver

  1. Board: iFlight BLITZ H7 Pro (purchased 2026)
  2. Firmware: ArduCopter V4.8.0-dev (a3c03223) / BlitzH743Pro
  3. UID: 00470046 3233510F 36393635
  4. Problem persists even with latest firmware from firmware.ardupilot.org/Copter/latest/BlitzH743Pro/
  5. FC works fine on Betaflight/iNav
  6. No baro name in boot messages, fails immediately

I now @Yuri-Rage made a patch in 2025 for this kind of trouble.

Can somebody help me on this?

Best regards

2 Likes
2

Hi @vmaze37,

Thanks very much for testing the beta.

You’ve mentioned that you’ve tested it with various versions. This includes 4.6.3? Sorry to ask but this helps narrow down the possible causes.

FYI @Yuri_Rage

@andyp1per, I see you made this change, so perhaps you know about the baro on this board?

3

Hello @rmackay9 , thank you for your answer.

I made some test yesterday evening, and find the solution. There was a conflict with the USB adapter board. Maybe a shortcut. When the adapter board is plug in, I have the baro issue, and when it’s unplugged, it’s working good.

So problem solved.

Have a nice day.

1 Like
4

Hi @vmaze37,

Great that it’s sorted and thanks for the feedback!