Domoticz

I try to make a virtual sensor which can monitor 2 inputs.
The custom sensor asks for just one axis label.
I need 2 axis labels. Just like Temp and Humidity for example.

I want to see the position of the roofwindows of my greenhouse. Four levels 0, 1, 2 and 3.
And the inside temperature of the greenhouse. Both in one graph.

Who can tell me where I can find the construction of for example the virtual meter for Humidity and Temperature? Maybe this gives me enough information on how to build something similar suitable for my purpose.

You can see all the device types and how to update them through an Http api json call on https://www.domoticz.com/wiki/Domoticz_ ... .2Fsensors

Maybe this provides a start: https://github.com/domoticz/domoticz/bl ... /Dummy.cpp

Waltervl: I know all this. Thanks anyway.

My question is not understood I think.
All I ask is how to construct a virtual meter with 2 inputs of different types. For 1 Y axes there are plenty examples.
What I need is a 2 Y axes graph. 1 axes for temperature and 1 for position of a window. ( 4 positions) 0, 1, 2, 3 and 4.

The Temp/hum or temp/bar devices have this double axes. You can send perhaps position 0-4 as hum or bar. Then you get 1 graph with 2 values.
you can try yourself to create a dummy device and send some sample data with the Json calls.
https://www.domoticz.com/wiki/Domoticz_ ... 2Fhumidity

If you want a position Y axis you will have to program that yourself in C+ based on the github repository as @plugge mentioned. But there is a steep learning curve. You will have to program a new device type, program database interaction, program the api, prgram the graphing and loging envirionment etc.
Another option would be to use 2 devices and merge the values in a combined graph afterwards with for example Dashticz or Grafana. But then the combined graph is not in the standard user interface.
Another option is to use the Custom Graph function in the temperature Tab and enhance that with the position device. But that will require some javascripting skills. https://www.domoticz.com/wiki/Managing_ ... om_Graph_2

Thanks a lot waltervl . I think I can carry on now....