from machine import Pin
from utime import sleep
led3=Pin(3,Pin.OUT)
led4=Pin(4,Pin.OUT)
led5=Pin(5,Pin.OUT)
led18=Pin(18,Pin.OUT)
led19=Pin(19,Pin.OUT)
led20=Pin(20,Pin.OUT)
while True:
    led18.on()
    led5.on()
    led19.off()
    led20.off()
    led3.off()
    led4.off()
    sleep(1)
    led20.off()
    led5.off()
    led19.on()
    led18.off()
    led3.off()
    led4.on()
    sleep(1)
    led20.on()
    led5.off()
    led19.off()
    led18.off()
    led3.on()
    led4.off()
    sleep(1)
    led20.off()
    led5.off()
    led19.on()
    led18.off()
    led3.off()
    led4.on()
    sleep(1)
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BOOTSELLED1239USBRaspberryPiPico©2020RP2-8020/21P64M15.00TTT