# Project 3: Traffic Lights

from time import sleep
from machine import Pin

led1=Pin(2, Pin.OUT)
led2=Pin(4, Pin.OUT)
led3=Pin(1,Pin.OUT)
sw12=Pin(0,Pin.IN)
state=sw12.value()
if state==1:
  
  
  led1.on()
  print("Led 1 On")
  led2.off()
  led3.off()    
  sleep(5)

  
  led1.off()    
  led2.on()
  led3.off()    
  print("Led 2 on")
  sleep(1)
  
  led3.on()
  led1.off()
  led2.off()
  print('Led 3 On')
  sleep(5)
else: 
    led2.on()
    slee(3)