import time
time.sleep(0.1) # Wait for USB to become ready

print("Hello, Pi Pico!")
from machine import Pin, PWM
from time import sleep

buzzer = PWM(Pin(15))
buzzer.duty_u16(0)
notes = [(262, 0.8), (330, 0.4), (392, 0.5)]

for frequency, duration in notes:
    buzzer.freq(frequency)
    buzzer.duty_u16(32768)  # about 50% duty
    sleep(duration)
    buzzer.duty_u16(0)
    sleep(0.1)

buzzer.deinit()