/* Name    : main.c
* Purpose  : Source code for Servo Motor Interfacing with Arduino.
* Author   : Gemicates
* Date     : 09-02-2018
* Website  : www.gemicates.org
* Revision : None
*/
#include<Servo.h>                                   // header file for controlling servo
Servo servo_sweep;                                  // create servo object to control a servo
int angle = 0;                                      // variable to store the servo position

void setup()
{
servo_sweep.attach(9);                              // attached the servo on pin 9 to the servo object
}

void loop()
{
  for(int angle = 0; angle <=180; angle += 1)       // goes from 0 degrees to 180 degrees in steps of 1 degree
  {
    servo_sweep.write(angle);                       // tell servo to go to position in variable 'angle'
    delay(20);                                      // waits 20ms between servo commands
  }

  for(angle = 180; angle >= 1; angle -= 1)          // goes from 180 degrees to 0 degrees
  {
    servo_sweep.write(angle);                       // move servo in opposite direction
    delay(20);                                      // waits 20ms between servo commands
  }
}