#include <ESP32Tone.h>
#define buzzer_pin 25

void setup() {
  pinMode(buzzer_pin, OUTPUT);
  birthday();
}

void loop() {
  
}

void birthday()
{
  tone(buzzer_pin,294,250,0);  //The four parameters are pin, frequency, delay and channel 
  tone(buzzer_pin,440,250,0);
  tone(buzzer_pin,392,250,0);
  tone(buzzer_pin,532,250,0);
  tone(buzzer_pin,494,250,0);
  tone(buzzer_pin,392,250,0);
  tone(buzzer_pin,440,250,0);
  tone(buzzer_pin,392,250,0);
  tone(buzzer_pin,587,250,0);
  tone(buzzer_pin,532,250,0);
  tone(buzzer_pin,392,250,0);
  tone(buzzer_pin,784,250,0);
  tone(buzzer_pin,659,250,0);
  tone(buzzer_pin,532,250,0);
  tone(buzzer_pin,494,250,0);
  tone(buzzer_pin,440,250,0);
  tone(buzzer_pin,698,250,0);
  tone(buzzer_pin,659,250,0);
  tone(buzzer_pin,532,250,0);
  tone(buzzer_pin,587,250,0);
  tone(buzzer_pin,532,500,0);
  noTone(buzzer_pin,0);  //Close
}