import machine 
import time 

# Initialize the onboard LED(GP22) as output
led = machine.Pin("GP22", machine.Pin.OUT) 

# Initialize a button (GP1) as input with pull-down resistor
button = machine.Pin("GP1", machine.Pin.IN, machine.Pin.PULL_DOWN)

last_press = 0
debounce_delay = 50  # ms

while True:
    now = time.ticks_ms()
    if button.value() and time.ticks_diff(now, last_press) > debounce_delay:
        last_press = now
        led.value(1)  # Turn on
        time.sleep(1)
        led.value(0)  # Turn off
        time.sleep(1)
    led.value(0)  # Ensure LED stays off when not pressed