I'm driving a stepper rated at 5V/1.7A using an A4988-based driver circuit with a 12V power supply. An Arduino controls the stepping sequence. According to the datasheet for my A4988, I should be calculating Vref as:

Feb 11, 2019 · This article includes everything you need to know about controlling a stepper motor with the A4988 stepper motor driver and Arduino. I have included a wiring diagram, a tutorial on how to set the current limit and many example codes.

Jun 5, 2020 · DRV8825 and A4988 are stepper motor drivers that are widely used in 3D printers, small hobby CNC machines, robot arms and many other projects. These are some of the breakout boards that you should always have around. They’re super cheap, easy to use and very useful.

The A4988 is a complete microstepping motor driver with built-in translator for easy operation. It is designed to operate bipolar stepper motors in full-, half-, quarter-, eighth-, and sixteenth-step modes, with an output drive capacity of up to 35 V and ±2 A.

This project utilizes an Arduino Mega 2560 to control multiple bipolar stepper motors via A4988 stepper motor drivers. The system is powered by a dual power supply setup, enabling precise motor control for applications such as CNC machines or robotic arms.

Aug 22, 2022 · Larger drivers like the TB6600 and DM542 have DIP switches that set the current going to the motor. Small drivers like the A4988, designed to be socketed into a motherboard, instead use a tiny potentiometer. By turning it, we can increase or decrease the current.

Oct 30, 2023 · In this tutorial, we’ll show you how to drive a bipolar stepper motor using an A4988 driver. This tutorial is compatible with stepper motor drivers commonly used in digital milling or 3D printer projects (DRV8825, SilentStepStick, etc.).

Explore comprehensive documentation for the Arduino Nano Rain-Sensing Stepper Motor System with A4988 Driver project, including components, wiring, and code. This project uses an Arduino Nano to control a stepper motor via an A4988 driver, based on input from a rain sensor.

Aug 16, 2015 · The A4988 is a microstepping driver for controlling bipolar stepper motors which has built-in translator for easy operation. This means that we can control the stepper motor with just 2 pins from our controller, or one for controlling the rotation direction and the other for controlling the steps.

Nov 9, 2024 · Current adjustment is crucial to avoid overheating and protect the motor. The driver includes built-in protections such as overcurrent and overtemperature. It is widely compatible with platforms such as Arduino and is ideal for 3D printers and CNC machines.