The A4988 driver IC controls the stepper motors, providing precise control over motor speed, direction, and acceleration.
The A4988 driver IC controls the stepper motors, providing precise control over motor speed, direction, and acceleration.
The A4988 driver IC supports microstepping, allowing for smooth and precise motor movement.
| Three-axis control | The board can control up to three stepper motors, making it suitable for applications requiring movement along multiple axes. |
The Arduino Nano microcontroller provides a USB interface for easy communication with a computer or other devices.
The board can be programmed using the Arduino Integrated Development Environment (IDE), allowing users to customize motor control algorithms and interfaces.
Key Features
Technical Specifications
Arduino Nano (ATmega328P)
A4988
Up to 2A per motor
Up to 16 microsteps per full step
5V - 12V
USB (via Arduino Nano)
50mm x 35mm x 15mm (Approx.)
Applications
| The 3-Axis USB CNC Arduino Nano Controller A4988 Stepper Motor Driver Board is suitable for a wide range of applications, including |
CNC machines
3D printers
Robotics
Automation systems
Mechatronic projects
Overall, this board provides a powerful and flexible solution for precise stepper motor control, making it an ideal choice for a variety of applications requiring accurate and reliable motor movement.
3-Axis USB CNC Arduino Nano Controller A4988 Stepper Motor Driver Board DocumentationOverviewThe 3-Axis USB CNC Arduino Nano Controller A4988 Stepper Motor Driver Board is a compact and versatile board designed for controlling stepper motors in various CNC, robotics, and automation applications. It features an Arduino Nano microcontroller, three A4988 stepper motor drivers, and a USB interface for communication.Key FeaturesArduino Nano microcontroller
Three A4988 stepper motor drivers
USB interface for communication
Supports 2A maximum current per motor
Microstepping capability (1/16, 1/8, 1/4, 1/2, full step)
-Compatible with CNC, robotics, and automation projectsPinout| Pin | Function |
| --- | --- |
| VCC | Power supply (5V) |
| GND | Ground |
| X_DIR | X-axis direction control |
| X_STEP | X-axis step control |
| Y_DIR | Y-axis direction control |
| Y_STEP | Y-axis step control |
| Z_DIR | Z-axis direction control |
| Z_STEP | Z-axis step control |
| EN | Enable signal (active low) |
| RX | USB serial communication (RX) |
| TX | USB serial communication (TX) |
| RST | Reset pin |Code Examples### Example 1: Basic Stepper Motor ControlThis example demonstrates how to control a single stepper motor using the A4988 driver. We will use the Arduino Nano to send step and direction signals to the motor.```cpp
const int dirPin = 2; // Direction pin for X-axis
const int stepPin = 3; // Step pin for X-axisvoid setup() {
pinMode(dirPin, OUTPUT);
pinMode(stepPin, OUTPUT);
}void loop() {
// Set direction
digitalWrite(dirPin, HIGH); // Clockwise direction// Take 1000 steps
for (int i = 0; i < 1000; i++) {
digitalWrite(stepPin, HIGH);
delayMicroseconds(500);
digitalWrite(stepPin, LOW);
delayMicroseconds(500);
}// Change direction
digitalWrite(dirPin, LOW); // Counter-clockwise direction// Take 1000 steps
for (int i = 0; i < 1000; i++) {
digitalWrite(stepPin, HIGH);
delayMicroseconds(500);
digitalWrite(stepPin, LOW);
delayMicroseconds(500);
}
}
```### Example 2: Multi-Axis Stepper Motor Control with USB CommunicationThis example demonstrates how to control multiple stepper motors using the A4988 drivers and communicate with a computer using the USB interface.```cpp
#include <Arduino.h>const int xDirPin = 2; // Direction pin for X-axis
const int xStepPin = 3; // Step pin for X-axis
const int yDirPin = 4; // Direction pin for Y-axis
const int yStepPin = 5; // Step pin for Y-axis
const int zDirPin = 6; // Direction pin for Z-axis
const int zStepPin = 7; // Step pin for Z-axisvoid setup() {
pinMode(xDirPin, OUTPUT);
pinMode(xStepPin, OUTPUT);
pinMode(yDirPin, OUTPUT);
pinMode(yStepPin, OUTPUT);
pinMode(zDirPin, OUTPUT);
pinMode(zStepPin, OUTPUT);
Serial.begin(9600);
}void loop() {
if (Serial.available() > 0) {
char command = Serial.read();
switch (command) {
case 'x':
// Move X-axis 1000 steps
digitalWrite(xDirPin, HIGH);
for (int i = 0; i < 1000; i++) {
digitalWrite(xStepPin, HIGH);
delayMicroseconds(500);
digitalWrite(xStepPin, LOW);
delayMicroseconds(500);
}
break;
case 'y':
// Move Y-axis 1000 steps
digitalWrite(yDirPin, HIGH);
for (int i = 0; i < 1000; i++) {
digitalWrite(yStepPin, HIGH);
delayMicroseconds(500);
digitalWrite(yStepPin, LOW);
delayMicroseconds(500);
}
break;
case 'z':
// Move Z-axis 1000 steps
digitalWrite(zDirPin, HIGH);
for (int i = 0; i < 1000; i++) {
digitalWrite(zStepPin, HIGH);
delayMicroseconds(500);
digitalWrite(zStepPin, LOW);
delayMicroseconds(500);
}
break;
default:
Serial.println("Unknown command");
break;
}
}
}
```Note: In the above example, the serial communication is used to receive commands from the computer to control the stepper motors. The commands are sent as characters ('x', 'y', or 'z') to move the corresponding axis.