from machine import Pin, Timer
import time
tim = Timer(-1)

button = Pin(15, Pin.IN, Pin.PULL_UP)
window=20

def tcb(t):
    print(button.value())

# Interrupt callback function
def callback(pin):
    tim.init(period=window, mode=Timer.ONE_SHOT, callback=tcb)

# Attach interrupt to button
button.irq(trigger=Pin.IRQ_FALLING | Pin.IRQ_RISING, handler=callback)

# Main loop
while True:
    time.sleep(0.01)  # Small delay to avoid busy-waiting