It's it kind of funny... one of the first home-brew CV projects I ever saw was an engineer's system that would unlock the cat flap door when it detected the cat

It's it kind of funny... one of the first home-brew CV projects I ever saw was an engineer's system that would unlock the cat flap door when it detected the cat's silhouette. A desirable side effect is that it would not open the door when the cat was carrying a rodent corpse. https://web.archive.org/web/20080913222639/http://www.quantumpicture.com/Flo_Control/flo_control.htm https://web.archive.org/web/20080913222639/http://www.quantu...