import max7219
from machine import Pin, SPI
import time

spi = SPI(1, baudrate=10000000, polarity=1, phase=0, sck=Pin(4), mosi=Pin(2))
ss = Pin(5, Pin.OUT)
display = max7219.Matrix8x8(spi, ss, 4)

mantener = Pin(23,Pin.IN,Pin.PULL_UP)
presionar= Pin(22, Pin.IN, Pin.PULL_UP)
presionar2 = Pin(21, Pin.IN, Pin.PULL_UP)
imprimir= Pin(19, Pin.IN, Pin.PULL_UP)
cont = 0
stop = False
while True:
    display.text(str(cont), 0, 0, 1)
    display.show()
    while True:
        if mantener.value()==0:
            time.sleep(.1)
        if mantener.value()==1:
            break
    while True:
        if presionar.value()==0:
            if stop == False:
                stop = True
                while stop == True:
                    time.sleep(.1)
                    if presionar2.value() == 0:
                        stop=False
                        break
            break
        if presionar.value()==1:
            break
    while True:
        if imprimir.value() == 0:
            while True:
                display.text('STOP', 0, 0, 1)
                display.show()
                if presionar2.value() == 0:
                    break
            break
        if imprimir.value() == 1:
            break
    time.sleep(.1)
    display.fill(0)  # Limpia la pantalla
    cont += 1