5V DC Stepper Motor + Motor Driver Module (ใช้ชิป ULN2003AN)

Stepper Motor ขนาด 5V + ไดร์เวอร์บอร์ด ULN2003 Driver Board สำหรับ Arduino/AVR/ARM 5V 4-Phase 5-Wire

Features

• The logic control voltage: 3~5.5V
• Motor Supply Voltage: 5~ 15V
• it can sink 500mA from a 50V supply,but you'd better limit the driver voltage under 15v.
• Operating temperature: -25 degree Celsius ~ +90 degree Celsius

HOW TO CONTROL STEPPER

     Step motor is to a machine to convert pulse to angle displacement. So if you give stepper driver a certain pulse signal, it will drive step motor to a certain angle. you can control the angle the stepper moved by the number of the pulse. And you also can control the speed of the stepper rotate by the frequency of the pulse. The following picture is the schematic of the stepper driver.

The following picture is the control signal to drive a 28BYJ48 stepper to rotate 1/4096 circle.

So we defined the time series in a array 
     byte CCW[8] = {0x09,0x01,0x03,0x02,0x06,0x04,0x0c,0x08}; //CouterClockWise 
     byte CW[8]= {0x08,0x0c,0x04,0x06,0x02,0x03,0x01,0x09}; //ClockWise

and in the following usage it will run, and then you must know how to drive a stepper.

Usage

• Stepper Control

     This usage is to drive a 28BYJ stepper. The stepper stopped when pushed the stop_button. It also can be changed to control the stepper to counterclockwise or clockwise rotate. Connect 28BYJ step motor to mini stepper driver as below:

โค้ดตัวอย่างการใช้งานอุปกรณ์กับบอร์ด Arduino

byte CCW[8] = {0x09,0x01,0x03,0x02,0x06,0x04,0x0c,0x08};
byte CW[8] = {0x08,0x0c,0x04,0x06,0x02,0x03,0x01,0x09};

const int stop_key = 14; //stop_button connect to Arduino-A0
byte change_angle=64; //change the parameter to change the angle of the stepper

void Motor_CCW() //the steper move 360/64 angle at CouterClockwise
{
for(int i = 0; i < 8; i++) {
for(int j = 0; j < 8; j++) {
if(digitalRead(stop_key) == 0) {
PORTB =0xf0;
break;
}
PORTB = CCW[j];
delayMicroseconds(1150);
}
 }
}
void Motor_CW() //the steper move 360/64 angle at Clockwise
{
for(int i = 0; i < 8; i++) {
for(int j = 0; j < 8; j++) {
if(digitalRead(stop_key) == 0) {
PORTB =0xf0;
break;
}
PORTB = CW[j];
delayMicroseconds(1150);
}
 }
}

void setup() {
pinMode(stop_key,INPUT);
digitalWrite(stop_key,HIGH);
Serial.begin(57600);
DDRB=0xff;
PORTB = 0xf0;
for(int k=0;kvoid loop() {
Motor_CCW(); //make the stepper to anticlockwise rotate
// Motor_LR(); //make the stepper to clockwise rotate
}

The connected stepper would rotate with a changing direction for this progam.

เอกสารเพิ่มเติม

- Aansluitschema
- Datasheet
- Voorbeeld code
- Aansluitschema Arduino
- Aansluitschema 2 Arduino