from machine import Pin, PWM
from time import ticks_ms, ticks_diff, sleep

button = Pin(16, Pin.IN)
buzzer = PWM(Pin(13))

while True:
    if button.value() == 1: 
        start_time = ticks_ms()
        while button.value() == 1:
            elapsed = ticks_diff(ticks_ms(), start_time)
            print("Button pressed for", elapsed, "ms.", end="\r")
            sleep(0.1)

        final_duration = ticks_diff(ticks_ms(), start_time)
        print("\nFinal duration:", final_duration, "ms")
        if 880 <= final_duration <= 1020:
            print("Playing Tone 1 (C4 - 261 Hz)")
            buzzer.freq(261)
            buzzer.duty_u16(32768)
            sleep(0.5)
            buzzer.duty_u16(0)

        elif 1880 <= final_duration <= 2020:
            print("Playing Tone 2 (G4 - 392 Hz)")
            buzzer.freq(392)
            buzzer.duty_u16(32768)
            sleep(0.5)
            buzzer.duty_u16(0)

        else:
            print("No tone played. Duration:", final_duration, "ms")

        sleep(0.2)