@rkoebrugge oke i will, i just ordered the 2 youless meters, but if I order,receive and install int OTGW i'll let you know what i did if it works
Just let me know if I can help you with something. Already using the YouLess API for my PHP script for example.
I'm a developer so maybe we can bundle ...

oke perfect ! my main purpose is to edit the temperature (setpoint) inside remotely.
@Deshke: Could you please share your code when you have completed this? I also want to set the Room Setpoint remotely, by an PHP script (running at the Pi which connects with the USB interface). Unfortunatly, I ...