Alimentador automático para gatos controlado por aplicativo Android

Abstract

Since the dawn of humanity, humans and animals interacted in groups to protect themselves and share food, which was often scarce and difficult to obtain. Over the years some animals, such as dogs and cats, became closer to people, as they managed to get food and protection without much effort and were domesticated, becoming home and life companions. Despite the proximity between them, there are many differences in food and in the functioning of their organism, humans have several meals during the day, with 3 as the main one in greater quantity of food, dogs have 2 to 3 meals a day, whereas dogs cats eat up to 12 small meals during 24h. The workload and the distance from home mean that many people do not return to their homes several times a day, thus making it difficult to control and offer the correct amount of food to the cat. With the constant development of technologies, it is possible to make an interconnection between smartphones, microcontrollers, and high precision motors. In order to create a system of easy connectivity to the Internet and send messages through communication protocols, to activate a feeder remotely and provide the correct amount of food to a cat, being available in up to 12 small portions automatically and pre-programmed or second remotely triggered by the tutor, thus aiming to avoid excessive consumption of food by the cat, optimizing its health and the time of its tutor. At the end of this work, an automatic feeder for cats controlled by an application for a mobile device with Android operating system was developed, which allows remote activation and scheduling of feeding, sending and receiving messages using the MQTT protocol, and the microcontroller ESP32 connected to the network Wi-Fi receives the messages, interprets them and controls a servomotor to dose and distribute the food to the cat, this project has a backup battery in cases of power failure. Tests for sending and receiving messages, as well as activating them, were carried out and the appropriate results were obtained.