# Project 3: Traffic Lights

from time import sleep
from machine import Pin

# define pin 2 as output

led1=Pin(4, Pin.OUT)
led2=Pin(5, Pin.OUT)
led3=Pin(6, Pin.OUT)
slideswitch=Pin(1, Pin.IN)

while True:
    state=slideswitch.value()
    if state==1:
    
    #led.value(1) # set value of "led" to "1" to turn on the LED
    # also you can use .on() or .off sethods to control the pin: led.on(), led.off()
        led1.on()
        print("On Green")
        led2.off()
        led3.off()
        sleep(5)
        
        led1.off()
        led2.on()
        print("On Yellow")
        led3.off()
        
        sleep(1)

        led3.off()
        led2.off()
        led3.on()
        print("On Red")
        sleep(5)

    if state==0:
        led1.off()
        led2.on()
        led3.off()   
        print("On Yellow") 
        sleep(0.5)
        led1.off()
        led2.off()
        led3.off()
        print("On Yellow")
        sleep(0.5)