import utime
utime.sleep(0.3)

import machine
led=machine.Pin(16,machine.Pin.OUT)
button=machine.Pin(15,machine.Pin.IN,machine.Pin.PULL_UP)
while 1:
    stat=button.value() #read button value
    if stat==0:
        led.value(1)
    else:
        led.value(0)
    utime.sleep(0.3)