https://hackaday.io/project/166359-blue-pot The URL to "Sparkfun's Port-O-Rotary" is gone (404) so I would suggest that you change it to "Way back machine",https://web.archive.org/web/20240302233245/https://www.sparkfun.com/products/retired/286
https://hackaday.io/project/166359-blue-pot
The URL to "Sparkfun's Port-O-Rotary" is gone (404) so I would suggest that you change it to "Way back machine",https://web.archive.org/web/20240302233245/https://www.sparkfun.com/products/retired/286