from machine import Pin
import utime

ledMerah = Pin(0,Pin.OUT)
ledKuning = Pin(1,Pin.OUT)
ledHijau = Pin(4,Pin.OUT)
ledBiru = Pin(5,Pin.OUT)
ledPutih = Pin(6,Pin.OUT)

while True:
    ledMerah.value(1)
    ledKuning.value(0)
    ledHijau.value(0)
    ledBiru.value(0)
    ledPutih.value(1)
    utime.sleep(0.5)

    ledMerah.value(0)
    ledKuning.value(1)
    ledHijau.value(0)
    ledBiru.value(1)
    ledPutih.value(0)
    utime.sleep(0.5)

    ledMerah.value(0)
    ledKuning.value(0)
    ledHijau.value(1)
    ledBiru.value(0)
    ledPutih.value(0)
    utime.sleep(0.5)