Feeding the cat is an important social interaction as well as a sure-fire way to get the critter to show up when you want it to (assuming the cat is even allowe

Feeding the cat is an important social interaction as well as a sure-fire way to get the critter to show up when you want it to (assuming the cat is even allowed to go outside of course, this is not a given). In that respect a cat feeder is a net negative... That said, this is a well-executed project which integrates a number of skills - theoretical, mechanical, logical - to produce something useful.