from machine import Pin, PWM
import time

# ----- Setup -----
buzzer = PWM(Pin(18))
buzzer.freq(440)  # Default frequency
buzzer.duty_u16(30000)  # Volume

# ----- Notes (Hz) -----
C = 261
D = 294
E = 329
F = 349
G = 392
A = 440
B = 493
C5 = 523

# ----- Jingle Sequence -----
jingle = [
    (C, 0.3), (E, 0.3), (G, 0.3), (C5, 0.5),
    (B, 0.3), (G, 0.3), (E, 0.3), (C, 0.5)
]

# ----- Play Jingle -----
for note, duration in jingle:
    buzzer.freq(note)
    buzzer.duty_u16(30000)
    time.sleep(duration)
    buzzer.duty_u16(0)  # Silence between notes
    time.sleep(0.05)

# ----- Turn Off Buzzer -----
buzzer.deinit()