I’m trying to add a new custom parameter but I get the error “Failed to write some parameters. Please restart the vehicle and try again”.
I’m doing it throught the “BlueOS>Autopilot Parameters>Load” option and I’m using the Ardupilot 4.1.0 version but I also tried with the 4.5.0 version.
I saved the actual .params file and I edited it to add my parameter. There is not error when I load others originals parameters (some of them were removed when I updated Ardupilot), but my custom parameter is the only one wich gets that error.
Thanks for your answer, I want to connect an additional BMP280 on the I2C port. So I want to add a new parameter that stores that measurement so I can display it on the main QGroundControl screen as a ‘Value Display’.
So far I am testing and I have managed, using Python, to get messages in MAVLink Inspector (in System 255), but I have not been able to display those values on the main screen.
Hi @MiguelC -
Besides modifying the ArduSub firmware, you would also need to ensure that the second BMP280 has a different I2C address! That is the best approach if you want the autopilot to manage collecting the pressure data. It may be possible to read the data with a python script, but I would bet your script is just sending a general message?
That’s right, I’m sending a test message right now.
So I understand that although they are on different buses (the original on bus 1 and the added one on bus 6) they must have different addresses, i.e. I must configure the added sensor at address 0x77, as the original one is at 0x76.
By main screen I meant the QGround Control, yes. So I will try to modify the firmware to add a parameter to display as ‘Value Display’.
