#include <Servo.h> // indicate that we want to use the Servo library

Servo servo; // initialize the Servo library

int servoPin = 9; // control lead of servo connected to pin 9
int angle = 0; // set the initial servo position in degrees 

int LED = 10; // the pin for the LED
int BUTTON = 12; // the input pin where the pushbutton is connected
int val = 0; // val will be used to store the state of the input pin




void setup() {
 pinMode(LED, OUTPUT); // tell Arduino LED is an output
 pinMode(BUTTON, INPUT_PULLUP); // and BUTTON is an input
 servo.attach(servoPin); // indicate that servo motor is attached to the servoPin
}



void loop() {
 val = digitalRead(BUTTON); // read input value and store it

 // Check whether the input is HIGH (button pressed)
 if (val != HIGH) {
 digitalWrite(LED, HIGH); // turn LED on
 delay(2000);
 } else {
 digitalWrite(LED, LOW); // turn LED off

  for(angle = 0; angle < 180; angle++) // counts up from 0 to 180 (max angle) using the variable "angle"
 {
 servo.write(angle); // set the new angle
 delay(15); // delay between the steps
 }
 for(angle = 180; angle > 0; angle--) // counts down from 0 to 180 (max angle) using the variable "angle"
 {
 servo.write(angle); // set the new angle
 delay(15); // delay between the steps
 } 
 }
}