/products/arduino/arduino-projects/b/blog/posts/automatic-cat-door-with-arduino-interface-and-plcThis project is not entirely Arduino, but I think it is a good example of how Arduino&#39;s can be incorporated into other systems. The initial design of this project was to automatically open and close the cat door and track the cat&#39;s activity a...en-USTelligent Community 12https://community.element14.com/products/arduino/arduino-projects/b/blog/posts/automatic-cat-door-with-arduino-interface-and-plcThu, 23 May 2024 19:59:49 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:75442e9d-a1e4-4cb7-be89-b9c9c48cb2d3DAB1<p>We once had a dog door that the cat would use.</p> <p>One day I yelled at the cat to go out and catch a mouse.</p> <p>The cat went out and returned with a live mouse in its mouth and proceeded to play with it inside the house.</p> <p>I never challenged that cat again.</p><img src="https://community.element14.com/aggbug?PostID=27995&AppID=149&AppType=Weblog&ContentType=0" width="1" height="1">