from machine import Pin,mem32
import time

p_start=Pin(14,Pin.IN,Pin.PULL_DOWN)
p_stop=Pin(15,Pin.IN,Pin.PULL_DOWN)
out=Pin(25,Pin.OUT)
stato_pin=machine.mem32[0xd0000000+0x004]

while True:
  if p_start.value():
    time.sleep_ms(20)
    if p_start.value():
        out.on()  
  if p_stop.value():
    time.sleep_ms(20)
    if p_stop.value():
        out.off()
  if stato_pin != machine.mem32[0xd0000000+0x004]:
    stato_pin = machine.mem32[0xd0000000+0x004]
    print(bin(stato_pin), time.ticks_ms())