This python script reads the temperature of the core of Raspberry Pi (or every linux machine) and pushes it to the Streaming API of https://plot.ly/ every 15 minutes to create a real-time scatter plot.
First run once initial_plot.py to create the scatter plot with your layout options:
python initial_plot.py
Now you have to run streaming_plot.py to push the core temperature to the API:
python streaming_plot.py
At last you can modify your crontab to run this script on reboot. Open crontab by:
sudo crontab -e
and put this in the end:
@reboot python /path/of/streaming_plot.py &