from machine import Pin, PWM
import time


BUZZER_PIN = 15


buzzer = PWM(Pin(BUZZER_PIN))


Frequencies = [
    262, 262, 294, 262, 349, 330, 262, 262, 294, 262, 392, 349, 262, 262, 524, 
    440, 349, 330, 294, 466, 466, 440, 349, 392, 349
]
Delays = [1, 1, 2, 2, 2, 3, 1, 1, 2, 2, 2, 3, 1, 1, 2, 2, 2, 2, 2, 1, 1, 2, 2, 2, 3]

def play_tone(frequency, duration_ms):
    """ Play a given tone for a given duration in milliseconds """
    if frequency > 0:
        buzzer.freq(frequency)
        buzzer.duty_u16(32767)  
        time.sleep_ms(duration_ms)
        buzzer.duty_u16(0)  
    else:
        time.sleep_ms(duration_ms)  

def main():
    for freq, delay in zip(Frequencies, Delays):
        double_freq = freq * 2
        duration_ms = delay * 400
        play_tone(double_freq, duration_ms)
        time.sleep_ms(100) 

if __name__ == "__main__":
    main()