Display Munin Graphs on Amazon Kindle
For more information see Matthew Petroff's original idea at https://mpetroff.net/2012/09/kindle-weather-display/
I use four Mijia Bluetooth temp/hum sensors in my setup. Munin generates values every 5 minutes, so I generate a new image every 4:
*/4 * * * * /home/pigpen/kindle/generate_kindle.sh > /dev/null 2>&1
The graphs show the changes over the last 3 hours. The gaps originate from crappy Bluetooth reception. :-(