Some links of things that where discussed:
http://www.gnuplot.info/
https://en.wikipedia.org/wiki/GNU_Octave
https://www.gnu.org/software/octave/about.html
http://data.gov.au/
http://www.abs.gov.au/
https://datagovau.ideascale.com/a/dtd/Vote-Compass-Data-by-Electorate-Demographic/19737-26233
http://www.statisticstoproveanything.com/2013/11/spider-web-plots-in-r.html
See the June blog post of all the MQTT and ESP2866 links
https://partsbox.io/ catalogue all your parts and where you have stored them
Now, on with a few photos of the afternoon:
All set to go with a few ESP2866 boards: