Stepper Motor Control System Based On Arduino With ULN2003 Chip

Project Summary:

This project 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.

Bill of Materials:

Firmware:

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.

Software & Code Snippets:

#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);
}

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