import time
from machine import Pin

red_led = Pin(1, Pin.OUT)
yellow_led = Pin(2, Pin.OUT)
green_led = Pin(3, Pin.OUT)
blue_led = Pin(4, Pin.OUT)

def turn_off_all():
    red_led.off()
    yellow_led.off()
    green_led.off()
    blue_led.off()

def display_menu():
    
    print("1 - Turn on Red LED")
    print("2 - Turn on Yellow LED")
    print("3 - Turn on Green LED")
    print("4 - Turn on Blue LED")
    print("5 - Blink LEDs in sequence")
    print("6 - Turn off all LEDs")
    print("0 - Exit")

while True:
    display_menu()
    choice = input("Enter your choice: ")

    if choice == "1":
        turn_off_all()
        red_led.on()
        print("Red LED is ON.")
    elif choice == "2":
        turn_off_all()
        yellow_led.on()
        print("Yellow LED is ON.")
    elif choice == "3":
        turn_off_all()
        green_led.on()
        print("Green LED is ON.")
    elif choice == "4":
        turn_off_all()
        blue_led.on()
        print("Blue LED is ON.")
    elif choice == "5":
        print("Blinking LEDs in sequence...")
        for _ in range(5):  
            red_led.on()
            time.sleep(0.5)
            red_led.off()
            yellow_led.on()
            time.sleep(0.5)
            yellow_led.off()
            green_led.on()
            time.sleep(0.5)
            green_led.off()
            blue_led.on()
            time.sleep(0.5)
            blue_led.off()