So I got this old thing:
A nice antique looking wind meter, that didn't work anymore. It requires these things on your roof:
And a long cable running through your house, which isn't very 2018. It also uses old school miniature light bulbs:
So, to bring it to the 21th century, I designed a nice open source wifi connected PCB with wifi, bluetooth, and rgb leds: https://circuitmaker.com/Projects/Details/Bernard-Bekker-4/windmeter