from machine import Pin, PWM
import time

buzzer = Pin(15, Pin.OUT)

# Define notes (frequencies in Hz)
notes = {
    'sa': 262,
    're': 294,
    'ga': 330,
    'ma': 349,
    'pa': 392,
    'dha': 440,
    'ni': 494,
    'sa_high': 523
}

# Simple Saregama tune (note, duration in ms)
tune = [
    ('sa', 300), ('re', 300), ('ga', 300), ('sa', 300),
    ('ga', 300), ('ma', 300), ('pa', 300), ('pa', 600)
]

def play_tone(freq, duration):
    pwm = PWM(buzzer)
    pwm.freq(freq)
    pwm.duty(512)  # 50% duty cycle
    time.sleep_ms(duration)
    pwm.deinit()
    time.sleep_ms(50)

for note, duration in tune:
    play_tone(notes[note], duration)