import machine
import utime

led1 = machine.Pin(0,machine.Pin.OUT)
led2 = machine.Pin(1,machine.Pin.OUT)
led3 = machine.Pin(2,machine.Pin.OUT)
led4 = machine.Pin(3,machine.Pin.OUT)
led5 = machine.Pin(4,machine.Pin.OUT)

while True:
    led1.value(1)
    led2.value(0)
    led3.value(0)
    led4.value(0)
    led5.value(0)
    utime.sleep(3)

    led1.value(0)
    led2.value(1)
    led3.value(0)
    led4.value(0)
    led5.value(0)
    utime.sleep(3)

    led1.value(0)
    led2.value(0)
    led3.value(1)
    led4.value(0)
    led5.value(0)
    utime.sleep(3)

    led1.value(0)
    led2.value(0)
    led3.value(0)
    led4.value(1)
    led5.value(0)
    utime.sleep(3)

    led1.value(0)
    led2.value(0)
    led3.value(0)
    led4.value(0)
    led5.value(1)
    utime.sleep(3)