IMAG0156 IMAG0161 Here is a little system that measures the temperature on my balcony every 15 minutes and saves it in a database. Made with a DS1820 thermometer and a Raspberry. (The Red diode tells me if i have received a new email on my gmail account) Here are the values saved :

2016-05-09 14:30:03 : 28.437 Celsius
2016-05-09 14:15:03 : 28.5 Celsius
2016-05-09 14:00:03 : 28.25 Celsius
2016-05-09 13:45:03 : 28.187 Celsius
2016-05-09 13:30:02 : 28.187 Celsius
2016-05-09 13:15:03 : 28.25 Celsius
2016-05-09 13:00:03 : 27 Celsius
2016-05-09 12:45:03 : 26.812 Celsius
2016-05-09 12:30:03 : 26.25 Celsius
2016-05-09 12:15:03 : 26 Celsius
2016-05-09 12:00:03 : 25.062 Celsius
2016-05-09 11:45:03 : 24.875 Celsius
2016-05-09 11:30:03 : 24.437 Celsius
2016-05-09 11:15:03 : 23.812 Celsius
2016-05-09 11:00:03 : 23.312 Celsius
2016-05-09 10:45:03 : 22.5 Celsius
2016-05-09 10:30:03 : 21.875 Celsius
2016-05-09 10:15:03 : 21.125 Celsius
2016-05-09 10:00:03 : 20.812 Celsius
2016-05-09 09:45:02 : 20.187 Celsius
2016-05-09 09:30:03 : 19.687 Celsius
2016-05-09 09:15:03 : 19.187 Celsius
2016-05-09 09:00:03 : 18.75 Celsius
2016-05-09 08:45:03 : 18.375 Celsius
2016-05-09 08:30:03 : 18.062 Celsius
2016-05-09 08:15:03 : 17.812 Celsius
2016-05-09 08:00:03 : 17.625 Celsius
2016-05-09 07:45:03 : 17.312 Celsius
2016-05-09 07:30:03 : 17.187 Celsius
2016-05-09 07:15:03 : 17.187 Celsius
2016-05-09 07:00:03 : 17.125 Celsius
2016-05-09 06:45:03 : 17.062 Celsius
2016-05-09 06:30:03 : 17 Celsius
2016-05-09 06:15:02 : 17.062 Celsius
2016-05-09 06:00:03 : 17.062 Celsius
2016-05-09 05:45:03 : 17.187 Celsius
2016-05-09 05:30:03 : 17.375 Celsius
2016-05-09 05:15:02 : 17.5 Celsius
2016-05-09 05:00:03 : 17.625 Celsius
2016-05-09 04:45:03 : 17.75 Celsius
2016-05-09 04:30:03 : 17.937 Celsius
2016-05-09 04:15:03 : 18.062 Celsius
2016-05-09 04:00:03 : 18.25 Celsius
2016-05-09 03:45:03 : 18.25 Celsius
2016-05-09 03:30:03 : 18.437 Celsius
2016-05-09 03:15:02 : 18.562 Celsius
2016-05-09 03:00:03 : 18.687 Celsius
2016-05-09 02:45:03 : 18.875 Celsius
2016-05-09 02:30:03 : 19.125 Celsius
2016-05-09 02:15:03 : 19.187 Celsius
2016-05-09 02:00:03 : 19.312 Celsius
2016-05-09 01:45:03 : 19.5 Celsius
2016-05-09 01:30:03 : 19.562 Celsius
2016-05-09 01:15:03 : 19.625 Celsius
2016-05-09 01:00:02 : 19.812 Celsius
2016-05-09 00:45:03 : 19.875 Celsius
2016-05-09 00:30:03 : 20 Celsius
2016-05-09 00:15:03 : 20.187 Celsius
2016-05-09 00:00:03 : 20.375 Celsius
2016-05-08 23:45:03 : 20.562 Celsius
2016-05-08 23:30:02 : 20.875 Celsius
2016-05-08 23:15:03 : 21.187 Celsius
2016-05-08 23:00:03 : 21.437 Celsius
2016-05-08 22:45:03 : 21.625 Celsius
2016-05-08 22:30:02 : 21.937 Celsius
2016-05-08 22:15:03 : 22.187 Celsius
2016-05-08 22:00:03 : 22.437 Celsius
2016-05-08 21:45:03 : 22.75 Celsius
2016-05-08 21:30:03 : 22.937 Celsius
2016-05-08 21:15:02 : 23.25 Celsius
2016-05-08 21:00:03 : 23.5 Celsius
2016-05-08 20:45:03 : 23.75 Celsius
2016-05-08 20:30:03 : 24.062 Celsius
2016-05-08 20:15:03 : 24.312 Celsius
2016-05-08 20:00:03 : 24.562 Celsius
2016-05-08 19:45:03 : 24.75 Celsius
2016-05-08 19:30:03 : 24.937 Celsius
2016-05-08 19:15:02 : 25.187 Celsius
2016-05-08 19:00:03 : 25.312 Celsius
2016-05-08 18:45:02 : 25.437 Celsius
2016-05-08 18:30:03 : 25.5 Celsius
2016-05-08 18:15:03 : 25.562 Celsius
2016-05-08 18:00:03 : 25.625 Celsius
2016-05-08 17:45:03 : 25.75 Celsius
2016-05-08 17:30:03 : 25.937 Celsius
2016-05-08 17:15:03 : 25.875 Celsius
2016-05-08 17:00:03 : 25.937 Celsius
2016-05-08 16:45:03 : 25.937 Celsius
2016-05-08 16:30:03 : 26 Celsius
2016-05-08 16:15:03 : 26.125 Celsius
2016-05-08 16:00:03 : 26.312 Celsius
2016-05-08 15:45:03 : 26.687 Celsius
2016-05-08 15:30:03 : 26.812 Celsius
2016-05-08 15:15:03 : 27.125 Celsius
2016-05-08 15:00:03 : 27.5 Celsius
2016-05-08 14:45:02 : 27.75 Celsius
2016-05-08 14:30:03 : 27.875 Celsius
2016-05-08 14:15:03 : 28.437 Celsius
2016-05-08 14:00:03 : 28.187 Celsius
2016-05-08 13:45:03 : 27.5 Celsius