Auto-locking pet door ensures that your outdoor kitty obeys
its curfew   If you’ve got a pet that roams freely in and out of
your house, you may find yourself wanting to more closely
regulate how they come and go. [tareker] was looking to keep his
cat indoors at night when dangerous animals might be lurking in
the neighborhood, but he didn’t want it to become a hassle.  He
already had locking pet door on hand, which he hacked to
regulate the egress and ingress of his cat automatically. He
installed a pair of reed switches to determine if the door had
been opened outwards (cat leaving) or inwards (cat returning),
keeping track of the state using an Arduino Nano. A servo motor
attached to the door’s frame locks the door whenever it detects
the cat is safely inside after nightfall.  While he also added
an RGB LED to reflect the status of the door, he’s considering
connecting it to the Internet so that he can control and check
the door from wherever he might be at the moment.     1. nah!
says:      At my home i h