Weather Station with 4 sensors
Many Weather Stations have only 1 sensors include PoC
Is measuring the Air Pressure, Altitude, Temperature with 4 Sensors
The hole story is documental here: https://blog.unixweb.de/experimente-temperatur-sensor-teil-1/
Many new technology and wiring all sensors
I learned many about internet technology, sensors, Graphical User Interface for SmartHome Integration You can display all graphs on a wordpress website with a simple wordpress plugin.
My next is low energy sensors can use with a solar panel.