import utime as u
u.sleep(0.3)

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