Log data with a DHT22 temp sensor & a Pi to Google Spreadsheet
Hey there!
In this video I'll connect a DHT 22 sensor to a Raspberry Pi. We'll read the temperature & humidity out of it, write the data to a Google Spreadsheet and display it in a nice look line chart.
Preparations
All you need is a Raspberry Pi and the DHT 22 sensor I used in the video. You'll find for around 5 Euro/Dollar at your favorite dealer. With these little preassembled sensor boards you are ready to go. If you only buy the sensor it self you may need some resistor to get it working.
Libraries/Links
We're using the Adafruit DHT lib. In the meantime it's declared deprecated. This means the vendor doesn't actively support it. I created an unmodified fork of it so that you can still use it in the future like in this video.
AdafruitDHT lib: https://github.com/datort/Adafruit_Py...
Temperature Chart lib: https://github.com/datort/raspi-tempe...
Google Developer Console: https://console.developers.google.com...
Google Docs: https://docs.google.com
Feel free to comment if you have any questions or suggestions.
Thanks for watching!