from machine import Pin
from time import sleep

btn_teller1 = Pin(27 , Pin.IN, Pin.PULL_UP)
btn_teller2 = Pin(12 , Pin.IN, Pin.PULL_UP)
btn_reset1 = Pin(14 , Pin.IN, Pin.PULL_UP)
btn_reset2 = Pin(13 , Pin.IN, Pin.PULL_UP)

teller1 = 0
teller2 = 0
status_teller1_eerder = 0;
status_reset1_eerder = 0;
status_teller2_eerder = 0;
status_reset2_eerder = 0;


while True:
    change = 0

    button_nu = btn_teller1.value()
    if button_nu != status_teller1_eerder:
        status_teller1_eerder = button_nu        
        if button_nu == 0:
          teller1 += 1
          change = 1
        sleep(0.005)

    button_nu = btn_teller2.value()
    if button_nu != status_teller2_eerder:
        status_teller2_eerder = button_nu        
        if button_nu == 0:
          teller2 += 1
          change = 1
        sleep(0.005)

    button_nu = btn_reset1.value()
    if button_nu != status_reset1_eerder:
        status_reset1_eerder = button_nu        
        if button_nu == 0:
          teller1 = 0
          change = 1
        sleep(0.005)

    button_nu = btn_reset2.value()
    if button_nu != status_reset2_eerder:
        status_reset2_eerder = button_nu        
        if button_nu == 0:
          teller2 = 0
          change = 1
        sleep(0.005)


    if change == 1:
      print("teller1 =", teller1, "teller2 =", teller2)
      change = 0