#https://wokwi.com/projects/397042893433666561
#by arvind ptil

import time
import board
import digitalio

# Initialize the LEDs
red_led = digitalio.DigitalInOut(board.GP5)
yellow_led = digitalio.DigitalInOut(board.GP7)
green_led = digitalio.DigitalInOut(board.GP11)

# Set LED directions to OUTPUT
red_led.direction = digitalio.Direction.OUTPUT
yellow_led.direction = digitalio.Direction.OUTPUT
green_led.direction = digitalio.Direction.OUTPUT

def show_traffic_light(red_on, yellow_on, green_on):
    red_led.value = red_on
    yellow_led.value = yellow_on
    green_led.value = green_on

while True:
    # Red light (stop)
    show_traffic_light(True, False, False)
    print("Red light (stop)")
    time.sleep(3)

    # Yellow light (prepare to go)
    show_traffic_light(False, True, False)
    print("Yellow light (prepare to go)")
    time.sleep(1.5)

    # Green light (go)
    show_traffic_light(False, False, True)
    print("Green light (go)")
    time.sleep(3)