volatile int i=90;//initializing a integer for incrementing and decrementing duty ratio
 bool x;

#include <Servo.h> // header file for controlling servo


Servo myservo;//defining the name usage as servo itself


void setup()


{
Serial.begin(9600);
myservo.attach(3);
                //pinMode(3, OUTPUT);   // sets the pin3 as output


                pinMode(5, INPUT_PULLUP);// sets the pin0 as output


                pinMode(6, INPUT_PULLUP);// sets the pin1 as output


}


 


void loop()


{


                myservo.write(i);//set servo potion ‘i’ degrees


               

x=digitalRead(5);
                if (x==LOW)


                {


                                if (i<180)


                                {


                                                i++;//if pin0 is pressed and degrees is less than 180

Serial.println(i);
                                                delay(30);


                                }


                }

x=digitalRead(6);
                if (x==LOW)


                {


                                if (i>0)


                                {


                                                i--;// if pin1 is pressed and degrees is greater than 0

Serial.println(i);
                                                delay(30);


                                }


                }

delay(30);
}