Control Stepper Motor With Blynk App Using ESP32

Introduction

Continue from the previous tutorial, this time I would like to add a simple element of IoT. By using the same hardware and connection, you can control the stepper movement from your phone. Thanks to Blynk app that make an IoT application become simple and easy.

Video

This video will show you how to control stepper motor 28BYJ-48 with Blynk app using TTGO T-Display ESP32.

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 (direction and speed) with Blynk app. Please install following libraries at Library Manager:

• TFT_eSPI by Bodmer Version 1.4.20
• Blynk by Volodymyr Shymanskyy Version 0.6.1

Thank You

References:

• Blynk Arduino Library - GitHub
• Blynk Documents

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