4-Phase 5-Wire Stepper Motor (28BYJ-48) [D021]



https://www.youtube.com/watch?v=YzQ7ImtW9bA


* GitHub : https://github.com/rdiot/rdiot-d021.git

* Specs

Color: Silver

Diameter: 28mm

Voltage: 5V

No-load pull into the frequency: >600Hz

Phase: 4

No-load pull-out frequency: >1000Hz

Reduction ratio: 1/64

Pull-in torque: >34.3mN.m (120Hz)

Step Angle: 5.625 x 1/64

Self-positioning torque: >34.3mN.m

DCR: 200ohm +/- 7% (25'C)

Temperature: <40K (120Hz)

Insulation resistance: >10Mohm (500V)

Noise: <40dB (120Hz, No load, 10cm)

Dielectric Strength: AC 600V / 1mA / 1s

Insulation Class: A

Cable length: 24cm

Suitable for guide wind deflector, portable air conditioner valve, etc

Dimensions: 1.65 in x 1.22 in x 0.79 in (4.2 cm x 3.1 cm x 2.0 cm)

Weight: 1.20 oz (34 g)


* Contents

28BYJ-48 Stepper Motor and ULN2003 Motor Driver


- Key Code

#include <Wire.h> 

#include <LiquidCrystal_I2C.h>

#include <Stepper.h>


LiquidCrystal_I2C lcd(0x27,20,4);  // LCD2004

const int stepsPerRevolution = 2048; // 2048:(360 Degree), 1024:(180 degree)


// ULN2003 IN4, IN2, IN3, IN1

Stepper myStepper(stepsPerRevolution,11,9,10,8); 


int val;


void setup()

{

  lcd.init();  // initialize the lcd 

  lcd.backlight();

  lcd.print("start LCD2004");


  delay(1000);

  

  myStepper.setSpeed(14); 

  lcd.clear();

}


void loop()

{

 

  lcd.setCursor(0,0);

  lcd.print("D021:28BYJ-48");

  lcd.setCursor(0,1);

  lcd.print("B002:X113647");


  // Left 1 round

  myStepper.step(stepsPerRevolution);

  val = stepsPerRevolution;

  lcd.setCursor(0,2);

  lcd.print("right=" + (String)val + "  ");

  delay(500);


  // Right 1 round

  myStepper.step(-stepsPerRevolution);

  val = -stepsPerRevolution;

  lcd.setCursor(0,2);

  lcd.print("left=" + (String)val + "   ");

  delay(500);


}

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