from machine import Pin, PWM, DAC
from time import sleep

led = PWM(Pin(23),freq=800)
buzzer = PWM(Pin(22),freq=1000)
push = Pin(12,Pin.IN,Pin.PULL_UP)

def sonido(x):
    led.duty(x)
    buzzer.freq(200 + x * 20)
    buzzer.duty(500) 

lista = [0, 100, 300, 500, 700, 500, 300, 100, 0]
n=0
i=0

while(1):
    if push.value()==0:
        sleep(0.02)
        n=n+1
        if n > 8:
            n=0
        while push.value()==0:
            sleep(0.2)

    sonido(lista[n])
    sleep(0.1)