#include <Servo.h>
Servo servo1;
void setup()
{
servo1.attach(9);
}
void loop()
{
int position;
servo1.write(90);
delay(1000);
servo1.write(180);
delay(1000);
servo1.write(0);
delay(1000);
for(position = 0; position < 180; position += 2)
{
servo1.write(position);
delay(20);
}
for(position = 180; position >= 0; position -= 1)
{
servo1.write(position);
delay(20);
}
}