Stepper motor Speed and direction Control with smartphone using Bluetooth

 

 

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           CODE 

//Subscribe My Channel **TECH TECHNOLOGY PK**

#include <Stepper.h>

const int stepsPerRevolution = 5;// change this to fit the number of steps per revolution

// for your motor

int estado= 0;  

// initialize the stepper library on pins 8 through 11:

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

void setup() {

  // set the speed amt 30m rpm:

  myStepper.setSpeed(500);

  // initialize the serial port:

  Serial.begin(9600);

}

void loop() {

   if(Serial.available()>0){

   estado = Serial.read();  } 

  // step one revolution  in one direction:

  if (estado =='1'){

  Serial.println("clockwise");

  myStepper.step(stepsPerRevolution);  

  }

  // step one revolution in the other direction:

  if (estado =='3'){  

  Serial.println("counterclockwise");

  myStepper.step(-stepsPerRevolution);  

  }

  if   (estado == 'A')   

  myStepper.setSpeed(1500);

  if   (estado == 'B')

  myStepper.setSpeed(2000);

  if   (estado == 'C')

  myStepper.setSpeed(2500);

  if   (estado == 'D') 

  myStepper.setSpeed(3000);

  if   (estado == 'E')

  myStepper.setSpeed(3500);

  if   (estado == 'F') 

  myStepper.setSpeed(4000);

}