First of all, again thanks to the GHI team for the gift I (and some of us) received. In my case, the gift was a CANxtra. This is an awesome device with a great little OLED display in a nice case.
I couldnt put this in my drawer so I started to thinker for what I could possibly use this. And then I came up with the following: A Heating tuning device. Yeah, I hear ya, what the heck is that.
If you have central heating, it is important for both performance and optimized gas consumption that each radiator is regulated in a specific way. The outlet temperature of the radiator should be 20°C less than the inlet temperature. You do this by turning the valve of the radiator left or right.
This gives me the possibility to fine tune each radiator, monitor remotely and log the temperatures over a longer period.
Credits go to Wouter Huysentruit for his excelent Webserver and JSON classes, and to GHI for their unbeatable support and great gifts.
Hoping this post was usefull to someone.
PS. The images were not taken at the same time, hence the different values on the CANxtra and the webpage.