Arduino LED Blink in Loop

TakeRestAlarm

#include <Metro.h> 
#define rLED 10 
#define gLED 9
#define LED 13

Metro pauseTimer = Metro(1200000); 

void setup()
{
  pinMode(rLED,OUTPUT);
  pinMode(gLED, OUTPUT);
  pinMode(LED, OUTPUT);
  
  digitalWrite(rLED,LOW);
  analogWrite(gLED,0);
  digitalWrite(LED,LOW);
}

void takeRest()
{
  digitalWrite(rLED,HIGH);
  delay(2000);
  digitalWrite(rLED,LOW); 
  
  analogWrite(gLED,255);
  delay(3000);
  analogWrite(gLED,0);
}

void loop()
{

  if (pauseTimer.check() == 1) {  
    takeRest();
  }
}