I have a set of lights along the stairs leading up to my top floor. I need a single-gang switch at the top and bottom that will detect when someone is walking up or down the stairs and switch the lights on. The lights are setup in a 3-way configuration so that the switches need to be able to turn each other off in a typical 3-way setup.
What I have now is wonky. It’s a $20 motion sensor switch at the top, and another at the bottom. It rarely ever works because ultimately it’s the wrong solution.