If all three stages are cleared the cat door is locked. He used an Arduino digital board to build a locking/unlocking mechanism for the door. The system also sends Hamm a text with pictures of the cat, and donates some money to the Audubon Society, a bird related organization. Hamm said the AI has been working very well, and the cat was unfairly locked out only once. While all the research in the AI field is fascinating to see, it’s amazing to actually look at a practical AI application solving a real-life problem. Kudos to Hamm, and pets to the cat. Update (07/07/2019): The earlier version of the story described Ben Hamm’s title as an engineer. We regret the error.
