Stepper Motor with DRV8825 Motor Driver
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In this article, we will introduce how to drive DRV8825 stepper motor driver through ESP32. The DRV8825 driver module is used to control stepper motors in a relatively simple manner. Only need to use two pins of ESP32 and DRV8825 driver module, we can control the rotation speed and rotation direction of the stepper motor.
1. Introduction of NEMA17 stepper motor
The NEMA 17 is a bipolar stepper motor rated at 12V with 200 steps per revolution and a speed of 60 rpm. In NEMA 17, all pins are internally connected to the coil. To make the motion we need to magnetize the coil. The rotation of the motor requires a magnetic field to make one step. The time required to make the coil magnetically charged depends on the induction strength of the coil.
To control the stepper motors internally we will have to use the green and black pair. The second pair will be red and blue.