// C++ code
// Mode 0 means CHOOSE
#include <Servo.h>
Servo myServo;

int Mode = 0;

void setup()
{
  pinMode(LED_BUILTIN, OUTPUT);
  
  myServo.attach(4); // Servo pin
}

void loop()
{
  if (Mode == 0) ;
  	myServo.write(30);
}