스텝모터 돌아가게 하기 - 주입펌프 만들기

 

 

준비물

구석구석에 두었던 부품들 모았다. Kit = Makeblock XY-plotter kit

• 스텝모터 - Kit.42BYG Stepper Motor
• 스텝모터드라이버 - Kit.Me Stepper Driver V1.0 (include Polulu A4988 motor driver)

https://www.makerguides.com/a4988-stepper-motor-driver-arduino-tutorial/ 

How to control a stepper motor with A4988 driver and Arduino

 

 

How to control a stepper motor with A4988 driver and Arduino

잘 설명된 사이트. 

A4988 pinout

Set microstep resolution

MS1	MS2	MS3	Microstep resolution
Low	Low	Low	Full step
High	Low	Low	1/2 step
Low	High	Low	1/4 step
High	High	Low	1/8 step
High	High	High	1/16 step

 

 

• 아두이노 우노 - Kit.Makeblock Orion board 을 대체  
• 점퍼 배선 - Kit.6P6C RJ25 Cable 을 대체
• 사각커넥터(암, 2.54mm) - 스텝모터드라이버에 납땜 부착. Kit.6P6C RJ25 connector 를 대체

Kit.Me Stepper Driver V1.0

 

 

DIP switch setting

마이크로스텝 해상도 설정 딥 스위치

1	2	3	Microstep resolution
Low	Low	Low	Full step
High	Low	Low	1/2 step
Low	High	Low	1/4 step
High	High	Low	1/8 step
High	High	High	1/16 step

Arduino UNO board vs. Makeblock Orion board

Arduino UNO 

소스: https://store.arduino.cc/products/arduino-uno-rev3/  Arduino Uno Rev3

 

Arduino UNO board

Arduino UNO pinout diagram

 

Makeblock Orion

 

https://erik-engheim.medium.com/makeblock-orion-a-friendly-arduino-uno-alternative-22322da43f32 Makeblock Orion, a friendly Arduino UNO Alternative

Makeblock Orion board

 

연결

• Driver.V-M - Adapter12V(+)
• Driver.GND - Adapter12V(-) 
• Driver.GND - UNO.GND 
• Driver.DIR - UNO.4
• Driver.STP - UNO.~3
• Driver.EN - UNO.2
• Driver.RESET - Driver.SLP
• Driver.1A - StepMotor.GreenWire
• Driver.1B - StepMotor.BlackWire
• Driver.2A - StepMotor.RedWire
• Driver.2B - StepMotor.BlueWire

 

스케치

스텝모터를 동작을 테스트하는 간단한 스케치를 작성한다.

/*
 * modified from 
 *   https://howtomechatronics.com/tutorials/arduino
 *   /how-to-control-stepper-motor-with-a4988-driver-and-arduino/
 * 
 */

#include <Stepper.h>

// Stepper stepper(steps, pin1, pin2, pin3, pin4);
//  to create an instance of the Stepper class for a stepper motor
//  Parameters:
//    steps, the number o steps in one revolution of your motor
//    pin1
// change this to the number of steps on your motor

#define pinEnable 2  // activation of driver
#define pinStep 3  // ~pin signal step
#define pinDir 4  // direction 

int i; 
int baseRevStep = 200;
int stepResolution = 16;  // MS1 = H, MS2 = H, MS3 = H
int revStep = 3200;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  Serial.println("test stepper motor driver");

  pinMode(pinEnable, OUTPUT);
  pinMode(pinDir, OUTPUT);
  pinMode(pinStep, OUTPUT);
  
  digitalWrite(pinEnable, LOW);  // enable stepper motor driver
  digitalWrite(pinDir, HIGH);  // 전방

  Serial.println(revStep); 
}

void loop() {
  // put your main code here, to run repeatedly:
  
  digitalWrite(pinDir, HIGH);  // clockwise
  Serial.println("pinDir HIGH"); 
  
  for(i=0; i<revStep*5; i++) {
    digitalWrite(pinStep, HIGH);
    delayMicroseconds(10); 
    digitalWrite(pinStep, LOW);
    delayMicroseconds(100); 
  }

  digitalWrite(pinDir, LOW);  // counter-clockwise
  Serial.println("pinDir LOW"); 
  
  for(i=0; i<revStep*5; i++) {
    digitalWrite(pinStep, HIGH);
    delayMicroseconds(10); 
    digitalWrite(pinStep, LOW);
    delayMicroseconds(100); 
  }
}

 

결과

 

42BYG stepper motor control by A4988 motor driver

 

참고자료

https://howtomechatronics.com/tutorials/arduino/how-to-control-stepper-motor-with-a4988-driver-and-arduino/ - How To Control a Stepper Motor with A4988 Driver and Arduino

 

https://www.makerguides.com/a4988-stepper-motor-driver-arduino-tutorial/ - How to control a stepper motor with A4988 driver and Arduino

 

https://github.com/jieywoo/syringe-pump-project - jieywoo/syringe-pump-project

 

https://erik-engheim.medium.com/makeblock-orion-a-friendly-arduino-uno-alternative-22322da43f32 - Makeblock Orion, a friendly Arduino Uno Alternative

 

 

https://store.arduino.cc/products/arduino-uno-rev3/ - Arduino Uno Rev3

 

https://www.airspayce.com/mikem/arduino/AccelStepper/index.html - AccelStepper: libray for Arduino