It provides several examples that are compatible with the ESP32. This library is well documented, with all the methods described in great detail. ![]() ![]() However, if you want more control over your stepper motor, there are libraries with more functions like the AccelStepper library. Using the Stepper.h library is one of the easiest ways to control a stepper motor. You can watch a quick video demonstration: After uploading, the motor will make one clockwise rotation and a counterclockwise rotation over and over again. myStepper.step(-stepsPerRevolution) Demonstration To rotate the motor counterclockwise, you need to pass the number of steps with the minus “ –” sign. For a full rotation (revolution), you need 2048 steps ( stepsPerRevolution variable). Pass as an argument the number of steps you want to take. You can use the step() method on the myStepper object. In the loop(), we’ll rotate the stepper motor clockwise and counterclockwise. Initialize the Serial Monitor at a baud rate of 115200. In the setup(), set the stepper speed using the setSpeed method. Stepper myStepper(stepsPerRevolution, IN1, IN3, IN2, IN4) In the case of the 28BYJ-48 stepper motor, the order of the pins is IN1, IN3, IN2, IN4-it might be different for your motor. Pass as arguments the steps per revolution and the input pins. Initialize an instance of the stepper library called myStepper. In this example, we’re connecting to GPIOs 19, 18, 5, and 17, but you can use any other suitable GPIOs. #include ĭefine the steps per revolution of your stepper motor-in our case, it’s 2048: const int stepsPerRevolution = 2048 // change this to fit the number of steps per revolutionĭefine the motor input pins. How the Code Worksįirst, include the Stepper.h library. We adapted this code from the examples provided by the Stepper library ( File > Examples > Stepper > stepper_oneRevolution). step one revolution in the other direction: The above copyright notice and this permission notice shall be included in allĬopies or substantial portions of the Software.īased on Stepper Motor Control - one revolution by Tom IgoeĬonst int stepsPerRevolution = 2048 // change this to fit the number of steps per revolution Of this software and associated documentation files. Permission is hereby granted, free of charge, to any person obtaining a copy This library provides an easy way to move the motor by a defined number of steps.Ĭopy the following code to your Arduino IDE. We’ll use the Arduino built-in Stepper.h library. There are different ways to control stepper motors with a microcontroller. Motor DriverĬontrol Stepper Motor with the ESP32 – Code Note: you should power the motor driver using an external 5V power supply. The following picture shows two 28BYJ-48 stepper motors. The stepper motor can rotate clockwise or counterclockwise. This allows us to rotate the motor by a precise angle to a precise position. It moves one step at a time, and each step is the same size. You can use the preceding links or go directly to /tools to find all the parts for your projects at the best price!Ī stepper motor is a brushless DC electric motor that divides a full rotation into a number of steps. ![]() ![]() ESP32 (read Best ESP32 Development Boards).To follow this tutorial, you need the following parts: ESP32 Servo Motor Web Server with Arduino IDE.ESP32 with DC Motor and L298N Motor Driver – Control Speed and Direction.We have tutorials for other motors with the ESP32: We have a similar tutorial for the ESP8266 board: ESP8266 NodeMCU with Stepper Motor (28BYJ-48 and ULN2003 Motor Driver)
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