How to transform your modbus data on openhab3(UI-driven!)

[BVVC (BrechtV)]

Hello all

I started with OH3 from scratch on a RPI4 2gb. I have some experience with OH2.x (filebased). I already have a running modbus binding on OH3 but I cant get my head around how to transform a modbus data thing through UI-driven configuration.
It’s actually quite simple, I want to divide it by 10.

I installed the Javascript Transformation 3.0.0.
My idea was to change the “default” Read Transform to “JS(divide10.js)”.
But then I dont know where to put the divide10.js script.
Or i am terribly wrong and too filebased minded…

So if you could point my thing in the right direction you would make my day.

Kind regards

[BVVC (BrechtV)]

Solved it myself

Through visual studio code I added the divide10.js script in the transform folder.

In the OH3 UI you can call the script by just filling in the script name. Without any brackets.

I had to reboot my raspberry pi because all my things where greyed out the first time I added the script to my modbus thing… Then it worked.