For those who prefer more insight (like us) rather than blindly installing an image file here are some very rough steps. Please read the warning: Under User Manual: Documentation Please help us making it better if you find mistakes by posting here.
Supported features: Self expanding .img file (occupies all space on first boot if SD card is bigger, not just 3.9GB) Controls heating and/or hot water individually from any Internet connected point on earth Monitors temperature, humidity and atmospheric pressure 3.5″ LCD single-point touch screen snaps on RaspberryPi GPIO header WiFi Internet connectivity Dual relay contacts...
Supported features: Self expanding .img file (occupies all space on first boot if SD card is bigger, not just 3.9GB) Controls heating and/or hot water individually from any Internet connected point on earth Monitors temperature, humidity and atmospheric pressure 3.5″ LCD single-point touch screen snaps on RaspberryPi GPIO header WiFi Internet connectivity Dual relay contacts...