from machine import Pin, PWM
from time import sleep_ms
barulhoINSUPORTAVEL = PWM(Pin(23))

barulhoINSUPORTAVEL.init()
barulhoINSUPORTAVEL.duty_u16(32767)

while True:
    barulhoINSUPORTAVEL.freq(440)
    sleep_ms(500)
    barulhoINSUPORTAVEL.freq(880)
    sleep_ms(500)


#1.8 graus