from machine import Pin 
import time

led = Pin(23, Pin.OUT)
button = Pin(21, Pin.IN)

while True:
    butt_status = button.value()
    if(butt_status==False):
        led.on()
        time.sleep(0.1)
    else:
        led.off()
        time.sleep(0.1)




#while True:
#    led.on()
#    time.sleep(0.5)
#    led.off()
#    time.sleep(0.5)