A Raspberry Pi 3 in the garage is connected to a sensor in a Weather Station outside. This sensor constantly monitors the Temperature, Air Pressure and Humidity.
Every 60 seconds the Raspberry Pi asks the sensor what these measurements are and it records them in its own storage area.
The Rasperry Pi then sends each of these measurements individually to our Cloud Server which stores them in their respective files. Each new reading overwrites the previous one.
This web page refreshes every 60 seconds and retrieves the values for Temperature, Air Pressure and Humidity from their respective files on the Server and displays them.