#ELVIA MARLEN HERNANDEZ GARCIA 602-B

from machine import Pin
import time

btn1 = Pin(16, Pin.IN, Pin.PULL_UP)  
btn2 = Pin(17, Pin.IN, Pin.PULL_UP)  

leds = [
    Pin(0, Pin.OUT),
    Pin(1, Pin.OUT),
    Pin(2, Pin.OUT),
    Pin(3, Pin.OUT),
    Pin(4, Pin.OUT),
    Pin(5, Pin.OUT),
    Pin(6, Pin.OUT),
    Pin(7, Pin.OUT),
    Pin(8, Pin.OUT),
    Pin(9, Pin.OUT)
]

conta = 0

def actualizar_leds():
    for i in range(10):
        leds[i].value(1 if i == conta else 0)


actualizar_leds()


while True:
   
    if btn1.value() == 0:
        if conta < 9:
            conta += 1
            actualizar_leds()
        time.sleep_ms(200)  
   
    if btn2.value() == 0:
        if conta > 0:
            conta -= 1
            actualizar_leds()
        time.sleep_ms(200)