#include <Servo.h>

Servo Geethma;

void setup() {
  // put your setup code here, to run once:
Geethma.attach(9);

}

void loop() {
  // put your main code here, to run repeatedly:
  Geethma.write(0);
  delay(1000);

  Geethma.write(90);
  delay(1000);

}