#include <Servo.h>

Servo myservo;


void setup() 
{
  pinMode(D12, OUTPUT);
}

void loop() 
{

    int pos;

    for (pos = 0; pos < 360; pos += 1) 
    {
		
        myservo.write(pos);

        delay(1000);

    }
    for (pos = 360; pos >= 1; pos -= 1) 
    {

        myservo.write(pos);

        delay(1000);
    }

    }