You're welcome.
I glad project is working as expected.
Thanks for letting us know.
Good luck with the rest of your project.

As the initial report is no a bug, I have moved topic to a more suitable place.

Hi
You are using the TimerInterval component wrong.
Like other interrupts you must have a callback macro assigned via it's properties.
The odd thing is you have it assigned on your image.
I have modified your project to stop at 4 minutes.
Also the switch you have used for Flowcode v10+ is a 3D only ...

From left to right the quick access buttons I added are:
Save, Reload, Project Explorer, Component Properties, 3D System Panel, Component Debugger, Consoles, Global Settings, Target Device, Toggle Breakpoint, Clear All Breakpoints, Show Code Profiling, Reset Code Profiling, Run, Stop, Pause ...

Important.
Before adding to the Quick Access Toolbar, make sure all other Flowcode projects are closed.

What I do with every version of Flowcode is use the Quick Access Toolbar (QAT) to access all the commonly used functions at the top of flowcode.
QAT Icons1.png and not need to keep selecting ...

Hi Luc.
Thank you for the nice words.
You're welcome and I'm glad you persevered and got BME280 to work.
Setting up the return value is always a go indication.

Hi Jorgen that does sound like a great project!
This would be an ideal location to add it for others to see.

You're welcome Luc.
My concern would be what the datasheet shows for the minimum voltage for logic 1
I2C Min High Level.png
it should be 0.7 * VDD.
Although there will be some safety margin, if measured voltages are out of tolerance that is a high risk, especially if PCB's.
Perhaps try a silicon ...

I have just added UART to your project and changed target to 18F46K22 which is the same family as your target device.
Copied all config settings so comparing like for like.
BME280 worked perfect for me with I2C in SW and on CH1.
UART Diag:
UART Test
BME280 Initialise = pass
Pressure = 1017.380004 ...

So your BME280 is not being detected.
I have a BME280, I will test that on FC11 to make sure the component is working as expected on my target device.

Sounds good to me.
Is the project file the same as attached to your first post?
The other thing that can be done is used your current board as an I2C sniffer.
You can either use the UART or display to show the results.
The idea is to see if BME280 is detected, if so what address is shown for it.
I ...

What about using the LCD as a diagnostic tool.
Print the return value of initialise.
I use the return value for all the components that have them.
Can you try that and let me know what the value is.