ELEGOO 5 Sets 28BYJ-48 ULN2003 5V Stepper Motor + ULN2003 Driver Board Compatible with Arduino
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Israel Mendoza
> 3 dayExcelente producto.
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Roberto
> 3 dayPrice is good, but motors are poor torque
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Deborah L Lienhart
> 3 daySuper easy to connect, even easier to code. Output one high, and the other 3 low. They are geared to turn pretty slow which is perfect for my application!
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r66-y
> 3 dayFantastic value and easy/fun to use as a first project on arduino or raspberry pi.
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Random person 2
Greater than one weekControling with a beaglebone, seems to do what it says
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Pyrohmstr
> 3 dayWorks exactly as advertised and comes in a nice box. The lights for the stepper coils are hilarious to watch when the stepper is running. Decent torque.
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Juan David Martinez
> 3 dayFast shipping good price.
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Mike T.
> 3 day1
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Adam Kneeland
> 3 dayShipping was fast and well packaged. Helping my son build a robot! 10/10 would order again.
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pmcomber
> 3 dayI bought these stepper motors for a final project in one of my engineering courses. I needed something cheap, but reliable and easy to work with. That is exactly what I found in these motors. It was easy to wire up and control using the Arduino IDE, they even have example code. The driver boards have LEDs to tell the user what phase the motor is in which is a big help when trying to debug when working on a large project. The only problems I have been running into is that the motors become very warm after about 10 minutes of use and that the turn speed is slow. Overall, Im very impressed with the product especially with its price.
BYJ48 STEPPER MOTOR
Stepper Motor is a type of electromagnetic device which moves in discrete steps. This has several coils, the center shaft has a series of magnets mounted on it, and the coils surrounding the shaft are alternately given current or not, creating magnetic fields which repulse or attract the magnets on the shaft, causing the motor to rotate.
This Unipolar Stepper Motor 28-BYJ48 is provided with five wires and four coils. The center connections of the coils are tied together and usually used as the power connection. They are named unipolar steppers because power always comes in on this one pole.
Specification
- A, B, C, D four-phase LED indicates the status of the stepper motor work.
- Stepper motor with a standard interface, when used directly pluggable.
- 5 line 4 phase can be used for ordinary ULN2003 chip driver, connect to the 2 phase , support the development board, with convenient use, direct docking.
- Rated Voltage: DC5V 4-phase
- Insulation Resistance: >10MΩ (500V)
- Dielectric Strength: 600V AC / 1mA / 1s
- Step angle: 5.625 x 1/64
- DC Resistance: 200Ω±7% (25C)
- Reduction ratio: 1/64
- Insulation Grade: A
- No-load Pull in Frequency: >600Hz
- No-load Pull out Frequency: >1000Hz
- Pull in Torque: >34.3mN.m(120Hz)
- Detent Torque: >34.3mN.m
- Temperature Rise: < 40K(120Hz)
Programm Code Example
The Arduino IDE support a library for stepper motor, after connect motor with microcontroller you can upload the sketch on to the microcontroller. The following is the code of an example program, it can be modified according to your needs:
#define IN1 8
#define IN2 9
#define IN3 10
#define IN4 11
int Steps = 0;
boolean Direction = true;
void setup() {
Serial.begin(9600);
pinMode(IN1, OUTPUT);
pinMode(IN2, OUTPUT);
pinMode(IN3, OUTPUT);
pinMode(IN4, OUTPUT);
}
void loop() {
for(int i=0; i<4096; i++){
stepper(1);
delayMicroseconds(800);
}
Direction = !Direction;
}
void stepper(int xw) {
for (int x = 0; x < xw; x++) {
switch (Steps) {
case 0:
digitalWrite(IN1, LOW);
digitalWrite(IN2, LOW);
digitalWrite(IN3, LOW);
digitalWrite(IN4, HIGH);
break;
case 1:
digitalWrite(IN1, LOW);
digitalWrite(IN2, LOW);
digitalWrite(IN3, HIGH);
digitalWrite(IN4, HIGH);
break;
case 2:
digitalWrite(IN1, LOW);
digitalWrite(IN2, LOW);
digitalWrite(IN3, HIGH);
digitalWrite(IN4, LOW);
break;
case 3:
digitalWrite(IN1, LOW);
digitalWrite(IN2, HIGH);
digitalWrite(IN3, HIGH);
digitalWrite(IN4, LOW);
break;
case 4:
digitalWrite(IN1, LOW);
digitalWrite(IN2, HIGH);
digitalWrite(IN3, LOW);
digitalWrite(IN4, LOW);
break;
case 5:
digitalWrite(IN1, HIGH);
digitalWrite(IN2, HIGH);
digitalWrite(IN3, LOW);
digitalWrite(IN4, LOW);
break;
case 6:
digitalWrite(IN1, HIGH);
digitalWrite(IN2, LOW);
digitalWrite(IN3, LOW);
digitalWrite(IN4, LOW);
break;
case 7:
digitalWrite(IN1, HIGH);
digitalWrite(IN2, LOW);
digitalWrite(IN3, LOW);
digitalWrite(IN4, HIGH);
break;
default:
digitalWrite(IN1, LOW);
digitalWrite(IN2, LOW);
digitalWrite(IN3, LOW);
digitalWrite(IN4, LOW);
break;
}
SetDirection();
}
}
void SetDirection() {
if (Direction == 1) {
Steps++;
}
if (Direction == 0) {
Steps--;
}
if (Steps > 7) {
Steps = 0;
}
if (Steps < 0) {
Steps = 7;
}
}
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| ELEGOO UNO R3 Board ATmega328P | ELEGOO UNO Project Super Starter Kit with Tutorial for Arduino | ELEGOO Mega 2560 Project The Most Complete Ultimate Starter Kit | ELEGOO UNO R3 Project Complete Starter Kit | ELEGOO UNO Project Smart Robot Car Kit V4 | ELEGOO Upgraded 37 in 1 Sensor Modules Kit with Tutorial | |
| Control Board | UNO R3 | UNO R3 | MEGA 2560 | UNO R3 | UNO R3 | / |
| Compatibility with Arduino | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Projects Tutorial Included | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Assembly Requirement | ✓ | No | No | No | ✓ | No |
| Reasons to Buy | The Same ATmega328 with Arduino UNO R3 Board; The Same ATmega16U2 with Arduino | Tutorial of 24 Projects, Cost-effetive Starter Kit | Tutorial of 33 Projects, Powerful Mega R3 Control Board | Tutorial of 33 Projects, Complete Stater Kit with UNO R3 | ELEGOO EleRobot APP; FPV Mode; Obstacle Avoidance; Line Tracking Mode | Tutorial of 34 Projects, Updated Version, Compatibility with Arduino IDE, Raspberry Pi and STM32 |