Feeding time at my home zoo is a chore because the animals enjoy each other’s food. It’s necessary for me to lock the pets in different parts of my home to prevent them from eating their siblings’ dinners. So I really need a gadget like this by Instructables member tomasdiazwahl.
His cat is diabetic and needs a special diet. He needs only his food and all of his food, so tomasdiazwahl combined an Arduino Uno and a bathroom scale to trigger the opening and closing of the cat’s covered food dish. It opens only by the cat’s known weight within half a pound.
-via Hack A Day