Or as in the example on the wiki
domoticz_updateDevice(14051,'',temp)


Actually, this IS correct! I never expected that the sensor expects a number as a string. :lol:

The main issue was that I selected the wrong ID. I checked several pages in the wiki for help, and on https://wiki.domoticz ...

Hi,

I just installed Domoticz, and I want to use it to display data which I can read out from a device via JSON.

What I did:
Create Dummy Hardware
Create Virtual Sensor, Type "Temp", which received the ID 14051
Create Hardware "HTTP/HTTPS poller" with custom command file.
I created the ...