Was the Cube Blue every supported in PX4? I know it is supposed to be exactly the same as a Cube Orange (not Orange+!) but it PX4 doesn’t seem to work that way. Specifically, when I take an image compiled for Cube Orange, that works on Orange, it loads into the Blue but the baud rates on TELEM1 an…

Oh, that’s the first time I hear this. My assumption was that Orange and Blue are identical in terms of software that runs on them. I assume these are Cube BlueH7, and not BlueF4.

Blue H7. I ran into someone at Cube who said “well they’re almost the same” but didn’t have the details. Do you know if Blue H7 was ever officially supported in PX4?

[Sponsored by CubePilot] stm32h7: Reset USART clock selection by julianoes · Pull Request #23498 · PX4/PX4-Autopilot There was actually an issue about this last year. That’s what we get for staying on an older version.

Nice find! That makes sense. So far anyone reading this later: the PX4 version needs to be recent enough to include the fix you mentioned above, or otherwise you need to switch to the PX4 bootloader (see Bootloader Update | PX4 Guide (main) ).

Cube Blue support?

Pixhawk

g8r September 3, 2025, 7:27pm 4

Found the solution.

You have to rebuild the bootloader under PX4, you can’t use the bootloader shipped on the Blue H7.

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Cube Blue support?

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