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by MarcScott 1507 days ago
Use a Pi with a camera module and a passive infrared motion sensor. Take a bunch of photos of your cat and other cats, using the module and the PIR to trigger it. Manually label photos as `your cat` and `not your cat` and then use https://teachablemachine.withgoogle.com/ to retrain a model based on your cat's image. Then rig a big enough servo or stepper motor to open a cat door, and a big buzzer for other cats.