from machine import Pin
from utime import sleep
import _thread

led_red = Pin(15,Pin.OUT)
led_yellow = Pin(14,Pin.OUT)
led_green = Pin(13,Pin.OUT)
button = Pin(16, Pin.IN , Pin.PULL_UP)
buzzer = Pin(12, Pin.OUT)

global button_status
button_status = 0

def button_thread():
    global button_status
    while True:
        if button.value() ==1:
            button_status = 1
_thread.start_new_thread(button_thread, ())

while True:
    if button_status ==1:
        led_red.value(1)
        for i in range(10):N
            buzzer.value(1)
            sleep(0.5)
            buzzer.value(0)
            sleep(0.5)
    global button_status
    button_status = 0

    led_red.value(1)
    sleep(5)
    led_red.value(0)

    led_yellow.value(1)
    sleep(2)
    led_yellow.value(0)

    led_green.value(1)
    sleep(5)
    led_green.value(0)

    led_yellow.value(1)
    sleep(2)
    led_yellow.value(0)