#include <Servo.h>


Servo myservo;  

void setup() 
{
  Serial.begin(9600);
  myservo.attach(9);  // attaches the servo on pin 9 to the servo object
}



void loop() 
{

for(int i=0; i<=180; i++)
{
  myservo.write(i);                  // 0 degree rotation   //0 -2
  delay(10);
}

for(int i=180; i>=0; i--)
{
  myservo.write(i);                  // 0 degree rotation   //0 -2
  delay(10);
}

 
}


/*
INPUT = potentiometer, pushbutton, sensor()

arduino

OUTPUT = led, servo motor, seven segment
*/