from machine import Pin
import utime

t=0.5
L=1
LNO = Pin(L, Pin.OUT)

for n in range(5):
    LNO=Pin(n,Pin.OUT)
    LNO.value(0)

for k in range(10):
    #PicoWの場合、"LED"をＬ変更
    LNO.value(1)
    utime.sleep(t)
    LNO.value(0)
    utime.sleep(t)