App Developper active gradient change

[stefan.erni]

Hi to All

I have various thermal sensors on a plate. I would like to change the gradient depending on the measured value in real time.
How can I do this?

2025-11-05_15-30-31.PNG (27.71 KiB) Viewed 3746 times

2025-11-05_15-34-01.PNG (32.31 KiB) Viewed 3746 times

I tried it but it didn't work active.

FC11_gradient_active_PC Project.fcpcd

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(view online)

[Steve-Matrix]

The property value takes a string variable, but I think if this is a number then it may have to be a decimal number (i.e. instead of "FF" you should use "255").

Also, if you just want to change one side of the gradient, consider the "SetColor" function instead of "SetProperty" as that gives more control.

See attached.

[stefan.erni]

Hi Steve

It's working nice.
Only the flame is red on the outside and blue on the inside.
It should be the other way around. But I'll try to fix that.
Here the result:

2025-11-06_14-59-16.PNG (55.2 KiB) Viewed 3712 times

I suspect the string is not hex..

2025-11-06_15-09-45.PNG (31.03 KiB) Viewed 3712 times

program for gradient