Tinkerforge is electronics framework for software developers. It's a good starting point for your own Internet of Things (IoT). So I decide to bye me a starter kit. I choose the weather station kit.
Now, after some time I publish my Tinkerforge Weather Station Java Project on Github (Link). Its simple and robust. It uses callbacks to recognize on sensor changes. and runs over days without problems. It measures humidity, air pressure, ambient light and temperature. The temperature is measured indirectly via chip temperature of the humidity bricklet. Special features are, switching the display light depending on ambient light, show alternating date and time and show warnings because of to low or high humidity. If you put your hand over the ambient light sensor, the sensor works as contactless light switch.
If you are looking for more information on Tinkerforge, you can read the book (Kindle, german only) from Sven Ruppert: Einführung in die Heimautomatisierung: IoT mit Tinkerforge.