from machine import Pin
from time import sleep

leds = [Pin(pin, Pin.OUT) for pin in [21, 19, 18, 5, 4, 2, 15, 22]]

button = Pin(12, Pin.IN, Pin.PULL_UP)

current_mode = 0
previous_button_state = 1

def blink_all_leds():
    print("Chế độ 1: Nhấp nháy tất cả LED")
    for led in leds:
        led.on()
    sleep(0.5)
    for led in leds:
        led.off()
    sleep(0.5)

def light_up_sequentially():
    print("Chế độ 2: Bật LED theo thứ tự")
    for led in leds:
        led.on()
        sleep(0.1)
        led.off()
    for led in reversed(leds):
        led.on()
        sleep(0.1)
        led.off()

while True:
    current_button_state = button.value()

    if previous_button_state == 1 and current_button_state == 0:
        current_mode += 1
        if current_mode > 1:
            current_mode = 0
        print(f"Chế độ hiện tại: {current_mode}")

    previous_button_state = current_button_state
    if current_mode == 0:
        blink_all_leds()
    else:
        light_up_sequentially()
    sleep(0.1)