This makes explaining the code a bit easier. In the rest of this tutorial I have left M0, M1 and M3 disconnected, so the driver operates in full-step mode. This pin is left disconnected for this tutorial.
The DRV8825 also features a FAULT output that drives low whenever the H-bridge FETs are disabled as the result of over-current protection or thermal shutdown. When this pin is set high the driver is disabled. The EN (enable) pin can be left disconnected, it is pulled low by default. 
You need to connect RST (reset) and SLP (sleep) to 5 V otherwise, the driver won’t turn on.You can choose a different digital pin if you want, but these are the ones I used for this tutorial and the example code. The STP (step) and DIR (direction) pin are connected to digital pin 3 and 2 respectively.The GND pin (lower right) is connected to the ground pin of the microcontroller and VDD is connected to 5V.
The two coils of the stepper motor are connected to A1, A2 and B1, B2 (see below). The motor power supply is connected to GND and VMOT (top right). It makes wiring much easier and is a great option if you need a more permanent solution than a breadboard. Such a shield already includes capacitors and offers an easy way to select the microstepping resolution. I like to use this driver in combination with a CNC-shield or expansion board. TB6600 Stepper Motor Driver with Arduino Tutorial. How to control a Stepper Motor with Arduino Motor Shield Rev3. 28BYJ-48 Stepper Motor with ULN2003 Driver and Arduino Tutorial. How to control a stepper motor with A4988 driver and Arduino. If you would like to learn more about other stepper motor drivers, then the articles below might be useful: This library is fairly easy to use and can greatly improve the performance of your hardware.Īfter each example, I break down and explain how the code works, so you should have no problems modifying it to suit your needs. I have included a wiring diagram, a tutorial on how to set the current limit, and many example codes.Īlthough you can use this driver without an Arduino library, I highly recommend you also take a look at the example code for the AccelStepper library at the end of this tutorial. This article includes everything you need to know about controlling a stepper motor with the DRV8825 stepper motor driver and Arduino.
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