led2.py

import machine
from machine import Pin, PWM, Timer, WDT


class LED:
    def __init__(self,pin,strong=100,pwm=True):
        self.pin = pin
        self.strong=strong
        self.state = False
        self.timer = None
        self.isBlink = False
        if pwm:
            self.pwm = PWM(Pin(pin))
            self.pwm.freq(1024)
            self.pwm.duty(0)
        self.off()
        
    def on(self,strong=-1):
        self.state = True
        if not strong == -1:
            self.strong= strong
        self.pwm.duty(self.strong)
        
    def off(self):
        self.state = False
        self.pwm.duty(0)
    
    def run(self,n):
        if self.isBlink:
            if self.state:
                self.off()
            else:
                self.on()
    
    def blink(self,peroid):
        _p_ = int(peroid*1000)
        if _p_ == 0:
            self.isBlink = False
            self.off()
            return
        else:
            self.isBlink = True
            self.on()
        
        if self.timer == None:
            self.timer = Timer(1)
            self.timer.init(period=_p_, mode=Timer.PERIODIC, callback=self.run)
        else:
            self.timer.deinit()
            self.timer = Timer(1)
            self.timer.init(period=_p_, mode=Timer.PERIODIC, callback=self.run)


led = LED(2)
led.on(100)