Control Stepper Motor 28BYJ-48 Using TTGO T-Display ESP32

Introduction

A stepper motor is an electric motor that rotates in discrete step increments. The movement of each step is precise and repeatable; therefore, the motor’s position can be controlled precisely without any feedback mechanism. Nowadays, it is being used widely in 3D printers, CNC machine or laser engraving (like Snapmaker). In this tutorial, I will share the basic steps to control stepper motor movement using ESP32 board.

You can read following links to know more how stepper motor works:

• How does Stepper Motor Works – Part 1
• How Does Stepper Motor Works – Part 2

Video

This video shows how to control stepper motor model 28BYJ-48 using ESP32 board.

Hardware Preparation

This is the list of items used in the video.

• TTGO T-Display ESP32 1.14 Display Module
• 12V 28BYJ-48 Stepper Motor + ULN2003 Driver Board
• LiPo Rechargeable Battery 11.1V 500mAh 25C
• Breadboard
• Jumper Wire

Sample Program

This sample program will allow user to control stepper movement through button 1 and 2 (on TTGO T-Display ESP32 board). You need to install following library on Library Manager:

• TFT_eSPI by Bodmer Version 1.4.20

Thank You

References:

• BYJ48 Stepper Motor by Mohannad Rawashdeh
• 28BYJ-48 stepper motor and ULN2003 Arduino

Thanks for reading this tutorial. If you have any technical inquiries, please post at Cytron Technical Forum.