There are many domesticated cats in Canada. Caregivers need to provide domesticated cats with a safe space and daily games that simulate hunting because of cats’ hunting nature, and they should also be mindful of the amount of exercise and food they eat to prevent obesity. However, many carers are too busy with their lives, resulting in them not being able to provide an ideal life for their cats. This thesis project will use the Research through Design (RtD) approach to explore how to employ COCO object detection model, Arduino, and Internet of Things (IoT) to design for the domestic cat's needs when people aren't at home. The research project iterated on four prototypes: 1) a safe space for cats - the Cat Castle. 2) a smart cat teaser to mimic the hunting game, which uses COCO object detection and Arduino. 3) An auto feeder to encourage cats to exercise more. 4) Integration of the above three prototypes to form an early-stage smart and cat-friendly environment. Finally, the prototype is designed to meet some of the cat's needs and it can also accompany the cat when the carer is not at home. This study can provide some exploratory experience in the animal-computer interaction (ACI) field of research on related topics.