#traffic light using Raspberri pi

from machine import Pin
from utime import sleep

print("hello")

led1 = Pin(3,Pin.OUT)
led2 = Pin(9,Pin.OUT)
led3 = Pin(13,Pin.OUT)

while True:
    led1.high()
    sleep(20) # Wait for USB to become ready
    led1.low()
    
    led3.high()
    sleep(2)
    led3.low()

    led2.high()
    sleep(10)
    led2.low()