from machine import Pin
import time

led = Pin("LED", Pin.OUT)
button = Pin(14, Pin.IN, Pin.PULL_UP)

last_press_time = 0

def button_pressed(pin):         
    global last_press_time      
    now = time.ticks_ms()      100ms
    
    if time.ticks_diff(now, last_press_time) > 200:
        led.toggle()
        print("Valid button press")
        last_press_time = now

button.irq(trigger=Pin.IRQ_FALLING, handler=button_pressed)

while True:
    time.sleep(1)