/*_________________________________________________
 * 
 * U C I   C R I T T E R   S T U D Y   G R O U P
 *                L E S S O N   3
 *              Working with Servos
 * 
 * 
 * PURPOSE: 
 *  DEMO HOW TO CONTROL STANDARD SERVO (0-180 ROTATION)
 *  Shows counted loop structure increment/decrement
 */



//---must use servo.h library that comes with Arduino IDE
#include <Servo.h>

//---instantiate new servo object
Servo myServo;

//--- store current servo positionition
int position = 0;

void setup()
{
  
  myServo.attach(10);  // control the servo on pin 10
}

void loop()
{
  //---sweep clockwise from 0-180 degrees in 1 degree increments
  for (position = 0; position <= 180; position += 1) 
    {
      myServo.write(position);
      delay(10);          //controls sweep speed
    }

  //---sweep back the other direction
  for (position = 180; position >= 0; position -= 1)       // -= means subtract 1 from position variable to count backwards
  {
    myServo.write(position);
    delay(10);
  }
 
}