28BYJ-48 Stepper Motor Control System Based on Arduino With ULN2003 Chip

by ICStation

33K6017

Intro: 28BYJ-48 Stepper Motor Control System Based on Arduino With ULN2003 Chip

ICStation Team introduce you this stepper motor control system based on ICStation UNO compatible with Arduino. It uses ULN2003 chip to drive. The working voltage is DC5V. It is widely used on ATM machine, inkjet printer,cutting plotter, fax machine,spraying equipment, medical instruments and equipments, PC peripheral, and USB Mass Storage ,precise instrument,industrial control system,office automation,robot areas,etc.

Functions

1.When start up, the stepper motor will rotate in the clockwise direction, at the same time the1602 LCD will display the stepping rate and rotating direction.

2.When you press the key1, the stepper motor will rotate in the counter-clockwise direction.

3.When you turn the potentiometer to the left or to the right, you can adjust the stepping rate of the stepper motor. At the same tine the 1602 LCD will display the current speed.

Code for your reference:

http://www.icstation.com/newsletter/eMarketing/Stepper_Motor_Code.txt

STEP 1: Components List

1.ICStation ATMEGA328 UNO V3.0 R3 Board Compatible Arduino

2.1602A HD44780 Character LCD Display Module

3.5V 4 Phase 5 Line 28BYJ-48 5VDC Stepper Motor

4.50K Ohm B50K Knurled Shaft Linear Rotary Taper Potentiometer

5.ULN2003AN DIP-16 TI Darlington Transistor Array

6.Trim Pot Resistor Potentiometer

7.830 Point Solderless PCB Bread Board MB-102 Test DIY

8.12X12X5mm Tact Switches 4 Legs

9.Bread Board Jump Line Jumper Wire

10. Dupont 20cm Color Cable Line

11.+5V DC power supply

STEP 2: Schematic Diagram

Working Principle:

To change the rotating speed of the stepper motor by changing the input frequency of pulse signal. And to realize the motor rotating in the clockeise direction and counter-clockwise direction by controlling the transform sequence of the pulse signal.


STEP 3: Overall Hardware Connected Diagram

STEP 4: Plug Into the Power Supply Wires and Place the Components

STEP 5: Connect the LCD1602

STEP 6: Connect the Stepper Motor

STEP 7: Connect the Signal End and Power Supply End

Connect the signal end of the components and the cathode and anode of the power supply to the ICStation UNO board compatible with Arduino and common port of power supply.

STEP 8: The Experimental Effect After Starting Up the Power Supply

14 Comments

bill1959parker 3 years ago

Do you hold down the button to keep it running or can I use end stop switches instead of the buttons so it keeps hitting the end stops and reversing the opposite way on a linear rail?
Thank you
Bill

krisald444 5 years ago

I kept wondering why i put everything you showed on Fritzing together, just as the picture showed yet wouldn't work. I went back and compared the picture of your finished circuit with the Fritzing. You forgot to put on your Fritzing a Ground wire that's connected to the LCD on pin RW and Connect the 50K POT to A0 on the Arduino. (everything else is correct and will work after). Thanks for everything else this is perfect for what i need making a Barn Door Star Tracker w/ adjustable speed.

krisald444 5 years ago

Here's the corrections on Fritzing with the 28BYJ-48 included, on LCD ground connected to RW, and 50k pot connected to A0 on Arduino

bernyro 5 years ago

salve mi sono iscritto al vostro sito pagando la quota minima e vorrei realizzare questo progetto del motore passo passo con arduino,ma mi manca lo sketch…..

me lo potete inviare?

GianL 7 years ago

Hi, good job man ;-) I wish to ask you if iou can tell me how, adding a
third button, to tell the motor to stop, assuming that the motor
rotates continuously when the left or right button is pressed.

Thank you for any help ;-)

dancopy 8 years ago

1) Can be used stepper motor 12 volts? (Printer)
2) key1 and key2 is the engine rotation direction?
Thank you

Skyfinder 8 years ago

Doesn't Work, the attachInterrupt not work... The stepper rotate ok, but the button are Useless... Wiring is correct. Something wrong in code. I use ad Arduino Uno Adeept, until now every projects works...this no. I tried to change some way to code, like digitalWrite (pin, HIGH); for the pullup but same result

Prince N 8 years ago

I am working on a project that uses 4 ldr's, two potentiometers and 2 step motor 28byj-48 to track the movement of the sun. I really need help with the programming

Prince N 8 years ago

I am working on a project that uses 4 ldr's, two potentiometers and 2 step motor 28byj-48 to track the movement of the sun. I really need help with the programming

Alex Hagios 9 years ago

How many K is the Trim pot resistor? Thanks

mike_menci 8 years ago

#include <Stepper.h>

#include <LiquidCrystal.h>

int Iint1=0;

int Iint2=1;

int anjian1=2;

int anjian2=3;

int motorSpeed;

LiquidCrystal lcd(9,8,7,6,5,4);

const int stepsPerRevolution =200;

// Here set the stepper motor rotation step how much is a circle

int dim=stepsPerRevolution;

// Set the step motor number and pin

Stepper myStepper(stepsPerRevolution, 10,11,12,13);

void setup()

{

lcd.begin(16, 2);

lcd.print("speed:");

lcd.setCursor(10,0);

lcd.print("n/min");

lcd.setCursor(0, 1);

lcd.print("Direction:");

// Set the motor speed of 60 steps per minute

myStepper.setSpeed(60);

pinMode(anjian1,INPUT_PULLUP);

pinMode(anjian2,INPUT_PULLUP);

attachInterrupt(Iint1,counterclockwise,FALLING);

attachInterrupt(Iint2,clockwise,FALLING);

Serial.begin(9600);

}

void loop()

{

myStepper.step(dim);

void Direction();

// Read the sensor values:

int sensorReading = analogRead(A0);

// Map it to a range of 0-150:

int motorSpeed = map(sensorReading, 0, 1023, 0, 150);

// Set the motor speed:

if (motorSpeed > 0)

{

myStepper.setSpeed(motorSpeed);

lcd.setCursor(6,0);

lcd.print(float(float(motorSpeed)/float(200)));

}

}

void clockwise()

{

// clockwise rotation

dim=stepsPerRevolution;

lcd.setCursor(10, 1);

lcd.print(">>>>>>");

}

void counterclockwise()

{

// anti-clockwise

dim=-stepsPerRevolution;

lcd.setCursor(10, 1);

lcd.print("<<<<<<");

}

steinie44 9 years ago

If you use a ULN2803, you can run 2 steppers. Put a PCF8574 IC in front of that and you can use I2C, only 2 pins.