from machine import *
import time
time.sleep(0.1) # Wait for USB to become ready

red_car = Pin(18, Pin.OUT)
yellow_car = Pin(17, Pin.OUT)
green_car = Pin(16, Pin.OUT)

red_people = Pin(18, Pin.OUT)
green_people = Pin(20, Pin.OUT)

button = Pin(15, Pin.IN, Pin.PULL_DOWN)

button_pressed = False

def button_handler(pin):
	global button_pressed
	button_pressed = True

button.irq(trigger=Pin.IRQ_RISING, handler=button_handler)

while True:
    print(button.value())
    if button_pressed == False:
        red_car.value(1)
        green_car.value(0)
        time.sleep(2)

        red_people.value(0)
        green_people.value(1)
        time.sleep(4)

        red_people.value(1)
        green_people.value(0)
        time.sleep(2)
        
        red_car.value(0)
        green_car.value(1)
        time.sleep(2)
    else:
        red_car.value(1)
        green_car.value(0)
        red_people.value(0)
        green_people.value(1)
        time.sleep(5)
        button_pressed = False

    time.sleep(0.1)