#include <Stepper.h>
#include <LiquidCrystal_I2C.h>
#include <Wire.h>

int pb1 = 7;
int pb2 = 5;

LiquidCrystal_I2C lcd(0x27,16,2);

const int stepsPerRevolution = 300;  

// initialize the stepper library on pins 8 through 11:
Stepper myStepper(stepsPerRevolution, 8, 9, 10, 11);

void setup() 
{
  Serial.begin(9600);
  lcd.begin(16,2);
  lcd.backlight();
  lcd.noBacklight();
  lcd.backlight();

  myStepper.setSpeed(60);

  lcd.setCursor(0,0);
  lcd.print(" Rangkaian Motor DC ");
  lcd.setCursor(0,1);
  lcd.print(" Forward Reverse ");

  pinMode(7, INPUT);
  pinMode(6, INPUT);
  pinMode(8, OUTPUT);
  pinMode(9, OUTPUT);
  pinMode(10, OUTPUT);
  pinMode(11, OUTPUT);
  pinMode(7, LOW);
  pinMode(6, LOW);
}

void loop() {
  if(digitalRead(7)==HIGH)
  {
    lcd.clear();
    lcd.print(" Motor Menyala ");
  // step one revolution  in one direction:
  Serial.println("clockwise");
  myStepper.step(stepsPerRevolution);
  delay(3000);

  // step one revolution in the other direction:
  Serial.println("counterclockwise");
  myStepper.step(-stepsPerRevolution);
  delay(3000);
  }

  else if(digitalRead(5)==HIGH)
  { digitalWrite(7,LOW);
    lcd.clear();
    lcd.print(" Motor Mati ");

}
}