EDIT: Solved - I found my solution in another topic here at
thank you again.
I am relatively new to home automation. I installed openhab 3 as virtual machine a few days ago. I have also a sensor to measure temperature. The temperature can be accessed via web(http).
What I have done so far:
- http binding installed
- regex transformation installed
- thing created (http-binding)
- channel created with profile regex and added my regex transformation into the regular expression field
But my result is always “undef” or “null” but if I check the html source at regex101 with my regex then I get my result.
Any hints what I am doing wrong?
Thank you in Advance
Best Regards Thomas