Automatic Arduino pet feeder – Open Electronics

In this project we will see how to make a 3D printed pet feeder. All modeled parts are available for you to replicate the project in your home.

The system is very simple: you are asked to enter two times when you want to distribute food, for example 8:30 and 17:30, then, at the indicated time, the stepper motor is activated and drops the food. As far as the electronic aspect is concerned we use a Nema17 stepper motor with its A4988 driver, an Arduino UNO, a keypad, an RTC clock module, an LCD display and a voltage regulator module from 12v to 5v (in the case of the project LM2596S).

The connections are summarized in the diagram below.

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