Originally published at: https://boingboing.net/2024/07/12/person-uses-arduino-to-engineer-cat-poop-guard-door.html
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Looks like the sensors are magnetic, closing when the dog’s collar is nearby.
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We went low tech. A short baby gate the cats went over or between the first bar and the wall, dog couldn’t do anything.
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Only good 'til the dog rolls in antiferromagnetic s— then camps in the box?
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Give the dog one of those vaccines that makes it magnetic to everything, including brass keys. /s
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