from machine import Pin, PWM
import asyncio

led_4 = PWM(Pin(4), freq = 2000)
led_4.duty_u16(0)

led_5 = Pin(5, Pin.OUT)

controle = ''

async def pwm():
    for i in range(2):
        for duty in range(0, 100, 1):
            brilho = int(duty * 655.35)
            led_4.duty_u16(brilho)
            await asyncio.sleep_ms(30)
        led_4.duty_u16(0)

async def piscar():
    for i in range(16):
        led_5.on()
        await asyncio.sleep_ms(250)
        led_5.off()
        await asyncio.sleep_ms(250)

async def gerenciador():
    global controle

    flag = True
    while flag:
        controle = input('Digite a, b ou c: ')

        if controle == 'a':
            await pwm()
        elif controle == 'b':
            await piscar()
        elif controle == 'c':   
            await asyncio.gather(pwm(), piscar())
        elif controle == 'd':
            flag = False
            print('Programa encerrado pelo usuário')

async def principal():
    await gerenciador() 

asyncio.run(principal())