30-day temperature data

Since I was going away for a month, I decided, before I left, to set my SDI-12 data logger to run a 30-day data collection routine, just to see how robust the software is. Here is the result:

The temperature sensor was in my office so its variation was small. The steep slope towards the end was because I opened the window after I got back and kept the window open for a whole day. You may notice the lack of variation of temperature between 5/10 and 5/13 but that WAS what happened. History data from wunderground.com showed less-than-average variation of outdoor temperature in my area during the same period:

So my conclusion was that my python data logger code running on raspberry pi was robust enough for at least 30 days so was the SDI-12 USB adapter. If this were done outdoors, then the raspberry pi and the SID-12 USB adapter both need protection from the element. Also a solar panel and battery will be needed.

Parts and components:

Raspberry pi 2 B (or 3 B)

SDI-12 USB adapter (Free python data logger code)

Decagon 5TM soil sensor