[Arduino source code for KC868-A8M]-07 Control 28BYJ-48 step motor

Code:
#include <RCSwitch.h>

#include "PCF8574.h"



#define motor_pin_1 0   

#define motor_pin_2 1

#define motor_pin_3 2

#define motor_pin_4 3



RCSwitch mySwitch = RCSwitch();

PCF8574 pcf8574(0x24,5,4);

int Step_Dealy_Time=10;

int Turn_Step=2048; 



int KEY1_BUTTON = 0;

int KEY2_BUTTON = 0;

int KEY3_BUTTON = 0;

int KEY4_BUTTON = 0;

int KEY5_BUTTON = 0;



void Read_buttonState ()

{ 

  /*The following data is the remote control of five key values，You can replace them with your own remote key values*/

  if(mySwitch.available()){

    Serial.printf("mySwitch.getReceivedValue = %d\n",mySwitch.getReceivedValue());

    if(mySwitch.getReceivedValue()==5756163)  { KEY1_BUTTON=1;KEY2_BUTTON=0;KEY3_BUTTON=0;KEY4_BUTTON=0;KEY5_BUTTON=0;}//Clockwise_Turn

    if(mySwitch.getReceivedValue()==5756172)  { KEY1_BUTTON=0;KEY2_BUTTON=1;KEY3_BUTTON=0;KEY4_BUTTON=0;KEY5_BUTTON=0;}//Anti_Clockwise_Turn

    if(mySwitch.getReceivedValue()==5756208)  { KEY1_BUTTON=0;KEY2_BUTTON=0;KEY3_BUTTON=1;KEY4_BUTTON=0;KEY5_BUTTON=0;}//Stop_Turn

    if(mySwitch.getReceivedValue()==5756364)  { KEY4_BUTTON=1;KEY5_BUTTON=0;}//Speed up

    if(mySwitch.getReceivedValue()==5756367)  { KEY4_BUTTON=0;KEY5_BUTTON=1;}//Speed down

 }

  mySwitch.resetAvailable();

}

/************Clockwise************/

void Clockwise_Turn (int Step)

{

  

  while (Step>0)

  {

    int which_one=Step % 4;

        switch (which_one) {

         case 0:  // AB

          pcf8574.digitalWrite(motor_pin_1, HIGH);

          pcf8574.digitalWrite(motor_pin_2, HIGH);

          pcf8574.digitalWrite(motor_pin_3, LOW);

          pcf8574.digitalWrite(motor_pin_4, LOW);

        break;

        case 1:  // BC

          pcf8574.digitalWrite(motor_pin_1, LOW);

          pcf8574.digitalWrite(motor_pin_2, HIGH);

          pcf8574.digitalWrite(motor_pin_3, HIGH);

          pcf8574.digitalWrite(motor_pin_4, LOW);

        break;

        case 2:  //CD

          pcf8574.digitalWrite(motor_pin_1, LOW);

          pcf8574.digitalWrite(motor_pin_2, LOW);

          pcf8574.digitalWrite(motor_pin_3, HIGH);

          pcf8574.digitalWrite(motor_pin_4, HIGH);

        break;

        case 3:  //DA

          pcf8574.digitalWrite(motor_pin_1, HIGH);

          pcf8574.digitalWrite(motor_pin_2, LOW);

          pcf8574.digitalWrite(motor_pin_3, LOW);

          pcf8574.digitalWrite(motor_pin_4, HIGH);

        break;

    }

  

    Read_buttonState();

    Button_speed_up_down(); 

    if (KEY2_BUTTON == 1)

    {      

      Anti_Clockwise_Turn(Turn_Step);       

    }

    if (KEY3_BUTTON == 1)

    {

      Stop_Turn(Turn_Step);

    }

    Step--;

    delay(Step_Dealy_Time);

  }



  

}

/*******************Anti_Clockwise**********************/

void Anti_Clockwise_Turn (int Step)

{

  

  while (Step>0)

  {

    int which_one=Step % 4;

        switch (which_one) {

        case 0:  // AD

          pcf8574.digitalWrite(motor_pin_1, HIGH);

          pcf8574.digitalWrite(motor_pin_2, LOW);

          pcf8574.digitalWrite(motor_pin_3, LOW);

          pcf8574.digitalWrite(motor_pin_4, HIGH);

        break;

        case 1:  //CD

          pcf8574.digitalWrite(motor_pin_1, LOW);

          pcf8574.digitalWrite(motor_pin_2, LOW);

          pcf8574.digitalWrite(motor_pin_3, HIGH);

          pcf8574.digitalWrite(motor_pin_4, HIGH);

        break;

        case 2:  //BC

          pcf8574.digitalWrite(motor_pin_1, LOW);

          pcf8574.digitalWrite(motor_pin_2, HIGH);

          pcf8574.digitalWrite(motor_pin_3, HIGH);

          pcf8574.digitalWrite(motor_pin_4, LOW);

        break;

        case 3:  //AB

          pcf8574.digitalWrite(motor_pin_1, HIGH);

          pcf8574.digitalWrite(motor_pin_2, HIGH);

          pcf8574.digitalWrite(motor_pin_3, LOW);

          pcf8574.digitalWrite(motor_pin_4, LOW);

        break;

        }

    Read_buttonState(); 

    Button_speed_up_down();

    if (KEY1_BUTTON == 1)

    {

         Clockwise_Turn(Turn_Step);

    }

    if (KEY3_BUTTON == 1)

    {

      Stop_Turn(Turn_Step);

    }

    Step--;  

    delay(Step_Dealy_Time);  

  } 



}

/*************Stop_Turn**********************/

void Stop_Turn (int Step)

{



    pcf8574.digitalWrite(motor_pin_1, HIGH);

    pcf8574.digitalWrite(motor_pin_2, HIGH);

    pcf8574.digitalWrite(motor_pin_3, HIGH);

    pcf8574.digitalWrite(motor_pin_4, HIGH);

       

    Read_buttonState(); 

    if (KEY1_BUTTON == 1)

    {        

      Clockwise_Turn(Turn_Step);

    }

    if (KEY2_BUTTON == 1)

    {

      Anti_Clockwise_Turn(Turn_Step);

    }

    delay(Step_Dealy_Time);

      

  }

/**************Speed up and down**********************/

void Button_speed_up_down()

{

  if (KEY4_BUTTON == 1)

  {

    delay(50);

    KEY4_BUTTON =0;

    Step_Dealy_Time=Step_Dealy_Time-1;



    if (Step_Dealy_Time<2)

      {

        Step_Dealy_Time=2;

      }



  }

  if (KEY5_BUTTON == 1)

  {   

    delay(50);

    KEY5_BUTTON =0;      

    Step_Dealy_Time=Step_Dealy_Time+1;

    if (Step_Dealy_Time>10)

      { 

        Step_Dealy_Time=10;

      }                             

  }

}



void Button_Clockwise_or_Anti_Clockwise_Turn()

{

  if (KEY1_BUTTON == 1&KEY2_BUTTON == 0&KEY3_BUTTON == 0)

  {

      Clockwise_Turn(Turn_Step);

  }

  if (KEY1_BUTTON == 0&KEY2_BUTTON == 1&KEY3_BUTTON == 0)

  {

      Anti_Clockwise_Turn(Turn_Step);

  }

  if (KEY1_BUTTON == 0&KEY2_BUTTON == 0&KEY3_BUTTON == 1)

  {

    Stop_Turn(Turn_Step);

  }

}



void setup()

{

   Serial.begin(115200);

   mySwitch.enableReceive(digitalPinToInterrupt(16));

    pcf8574.pinMode(motor_pin_1, OUTPUT);

    pcf8574.pinMode(motor_pin_2, OUTPUT);

    pcf8574.pinMode(motor_pin_3, OUTPUT);

    pcf8574.pinMode(motor_pin_4, OUTPUT);

    pcf8574.begin();

}



void loop()

{

   Read_buttonState();

   Button_speed_up_down();

   Button_Clockwise_or_Anti_Clockwise_Turn();

   delay(30);

}