MarkT:
Right, I've zoomed in to the full-res version of that photo and its clear they are all plugged in the wrong way round.Go to the datasheet, look at the pin out.
If you don't understand what "bottom view" means that could be an issue...
Indeed, I got confused with the pin out and the bottom view schematic. I changed the GND pin and readouts are closer to reality now.
No need to be sarcastic though, we are not all electronics engineers.