The kids and the dog have been in and out of the sliding screen door all summer, and the thing is getting harder and harder to open and close. The ...

As it so happened, this scanner had just enough carriage travel to be able to actuate a cover for the doggy door. After reinforcing the sliding cover, he hooked it up to an Arduino Nano, ...

And the sliding-screen door lets you enjoy fresh air and cooling breezes, while keeping annoying bugs at bay. The screen door is much lighter and thinner than the sliding-glass door, ...