Particle Photon application for receiving Teams presence statuses

TeamsPresence-Photon

int red = D5;
int yellow = D4;
int green = D6;

void setup()
{
  Particle.function("setStatus", setStatus);

  pinMode(red, OUTPUT);
  pinMode(yellow, OUTPUT);
  pinMode(green, OUTPUT);

  for(int i = D5; i <= D7; i++)
  {
      digitalWrite(i, HIGH);
      delay(250);
      digitalWrite(i, LOW);
      delay(250);
  }

  backtodefault();
}

void loop()
{
}

void backtodefault()
{
  digitalWrite(red, LOW);
  digitalWrite(yellow, LOW);
  digitalWrite(green, LOW);
}

int setStatus(String status)
{
  backtodefault();

  if(status == "Busy" || status == "DoNotDisturb"){
    digitalWrite(red, HIGH);
  }else if(status == "Away" || status == "TemporarilyAway" || status == "FreeIdle"){
    digitalWrite(yellow, HIGH);
  }else if (status == "Free"){
    digitalWrite(green, HIGH);
  }

  return 1;
}