from machine import Pin, Timer
from time import sleep

led1=Pin(0,Pin.OUT)
led2=Pin(1,Pin.OUT)
led3=Pin(2,Pin.OUT)

Timer1=Timer(period = 100, mode=Timer.PERIODIC, callback=lambda t1: led1.value(not led1.value()))
Timer2=Timer(period = 100, mode=Timer.PERIODIC, callback=lambda t1: led2.value(not led2.value()))
Timer3=Timer(period = 100, mode=Timer.PERIODIC, callback=lambda t1: led3.value(not led3.value()))

x=0
try:
    while True:
        print(x)
        sleep(1)
        x+=1

except KeyboardInterrupt:
    Timer1.deinit()
    led1.off()