Automatic pet feeder (Arduino)

A smart automatic feeder for dogs and cats that refills dry food when the food level is low. When the amount of food in the bowl drops below 30 grams, the system automatically dispenses food until it reaches 80 grams. This project was created as a simple and reliable feeding solution for pets. It is ideal for owners who have little time or are often away from home. By automatically refilling dry food based on the current weight in the bowl, it helps maintain regular feeding and ensures that the pet will not be hungry or stressed. The food weight is measured using a load cell sensor. Based on the measured weight, the system controls a stepper motor that precisely dispenses the required amount of dry food. Used Hardware: Arduino Uno – the main microcontroller board used to control the project and manage sensors and motors. GUANG CE YZC-131 Weighing Sensor 1 kg – a load cell used to measure the weight of the food in the bowl. 28BYJ-48 Stepper Motor – a stepper motor used for precise food dispensing. ULN2003 Stepper Motor Controller – a driver module used to control the stepper motor. HX711 24-bit 2-channel ADC Module – an analog-to-digital converter used to convert signals from the load cell into digital data that can be processed by the Arduino. Used Software: Arduino IDE – the main software used for programming the Arduino Uno board. The code is written in C++ and uploaded to the Arduino, which then controls the sensors, motors, and the overall functionality of the project.