from machine import Pin
import time

#Configurar entradas A,B,C y D
A=Pin(21, Pin.IN, Pin.PULL_DOWN)
B=Pin(20, Pin.IN, Pin.PULL_DOWN)
C=Pin(19, Pin.IN, Pin.PULL_DOWN)
D=Pin(18, Pin.IN, Pin.PULL_DOWN)

#Configuración de segmentos del display como salida
a=Pin(12,Pin.OUT)
b=Pin(13,Pin.OUT)
c=Pin(11,Pin.OUT)
d=Pin(10,Pin.OUT)
e=Pin(9,Pin.OUT)
f=Pin(8,Pin.OUT)
g=Pin(7,Pin.OUT)

#Crear los números de iluminación
def nada():
  a.value(0)
  b.value(0)
  c.value(0)
  d.value(0)
  e.value(0)
  f.value(0)
  g.value(0)
def cero():
  a.value(1)
  b.value(1)
  c.value(1)
  d.value(1)
  e.value(1)
  f.value(1)
  g.value(0)
def uno():
  a.value(0)
  b.value(1)
  c.value(1)
  d.value(0)
  e.value(0)
  f.value(0)
  g.value(0)
def dos():
  a.value(1)
  b.value(1)
  c.value(0)
  d.value(1)
  e.value(1)
  f.value(0)
  g.value(1)
def tres():
  a.value(1)
  b.value(1)
  c.value(1)
  d.value(1)
  e.value(0)
  f.value(0)
  g.value(1)
def cuatro():
  a.value(0)
  b.value(1)
  c.value(1)
  d.value(0)
  e.value(0)
  f.value(1)
  g.value(1)
def cinco():
  a.value(1)
  b.value(0)
  c.value(1)
  d.value(1)
  e.value(0)
  f.value(1)
  g.value(1)
def seis():
  a.value(1)
  b.value(0)
  c.value(1)
  d.value(1)
  e.value(1)
  f.value(1)
  g.value(1)
def siete():
  a.value(1)
  b.value(1)
  c.value(1)
  d.value(0)
  e.value(0)
  f.value(0)
  g.value(0)
def ocho():
  a.value(1)
  b.value(1)
  c.value(1)
  d.value(1)
  e.value(1)
  f.value(1)
  g.value(1)
def nueve():
  a.value(1)
  b.value(1)
  c.value(1)
  d.value(1)
  e.value(0)
  f.value(1)
  g.value(1)

#Accionar sistema BCD

while True:
  A_valor=A.value()
  B_valor=B.value()
  C_valor=C.value()
  D_valor=D.value()

  if (A_valor==0) and (B_valor==0) and (C_valor==0) and (D_valor==0):
    cero()
    time.sleep(1)
  if (A_valor==0) and (B_valor==0) and (C_valor==0) and (D_valor==1):
    uno()
    time.sleep(1)
  if (A_valor==0) and (B_valor==0) and (C_valor==1) and (D_valor==0):
    dos()
    time.sleep(1)
  if (A_valor==0) and (B_valor==0) and (C_valor==1) and (D_valor==1):
    tres()
    time.sleep(1)
  if (A_valor==0) and (B_valor==1) and (C_valor==0) and (D_valor==0):
    cuatro()
    time.sleep(1)
  if (A_valor==0) and (B_valor==1) and (C_valor==0) and (D_valor==1):
    cinco()
    time.sleep(1)
  if (A_valor==0) and (B_valor==1) and (C_valor==1) and (D_valor==0):
    seis()
    time.sleep(1)
  if (A_valor==0) and (B_valor==1) and (C_valor==1) and (D_valor==1):
    siete()
    time.sleep(1)
  if (A_valor==1) and (B_valor==0) and (C_valor==0) and (D_valor==0):
    ocho()
    time.sleep(1)
  if (A_valor==1) and (B_valor==0) and (C_valor==0) and (D_valor==1):
    nueve()
    time.sleep(1)
  else:
    nada()
    time.sleep(1)