import utime

import machine
from machine import I2C,Pin
from lcd_api import LcdApi
from pico_i2c_lcd import I2cLcd

I2C_ADDR     = 0x27
I2C_NUM_ROWS = 2
I2C_NUM_COLS = 16

def fun_up(up):
    global count
    count += 1
    if count > 1000:
        count = 0
    lcd.move_to(7,1)
    aux = "{:04d}",format(count)
    lcd.putstr(aux)

def fun_down(down):
    global count
    count -= 1
    if count < 0:
        count = 1000
    lcd.move_to(7,1)
    aux = "{:04d}",format(count)
    lcd.putstr(aux)
    
def test_main():
    #Test function for verifying basic functionality
    print("Contador de 0 a 1000")
    i2c = I2C(0, sda=machine.Pin(0), scl=machine.Pin(1), freq=400000)
    lcd = I2cLcd(i2c, I2C_ADDR, I2C_NUM_ROWS, I2C_NUM_COLS)    
    lcd.putstr("Contador de 0 a 1000")
    utime.sleep(2)
    lcd.clear()
    lcd.putstr("    Eventos:        1000")

up = (Pin(14,Pin.IN,Pin.PULL_UP))
down = (Pin(15,Pin.IN,Pin.PULL_UP))

up.irq(trigger = Pin.IRQ_FALLING,handler = fun_up)
down.irq(trigger = Pin.IRQ_FALLING,handler = fun_down)
count = 0

#if __name__ == "__main__":
test_main()
while True:
    pass