from machine import Pin
from utime import sleep

sleep(0.01) # Wait for USB to connect
print("Hello, Pi Pico!")

l0 = Pin(0, Pin.OUT)
l1 = Pin(2, Pin.OUT)
l2 = Pin(6, Pin.OUT)
l3 = Pin(10, Pin.OUT)

while True:
  l0.toggle()
  sleep(0.5)
  l1.toggle()
  sleep(0.5)
  l2.toggle()
  sleep(0.5)
  l3.toggle()
  sleep(0.5)