from machine import Pin
from utime import sleep_ms

button = Pin(0, Pin.IN, Pin.PULL_UP)
led = Pin(1, Pin.OUT)

state = 0

while True:
    print(button.value())
    if button.value() == 0:
        if state == 0:
            led.value(1)
            sleep_ms(100)
            while button.value() == 0:
                pass
            state = 1
        else:
            led.value(0)
            sleep_ms(100)
            while button.value() == 0:
                pass
            state = 0

    sleep_ms(10)