"""Implements a HD44780 character LCD connected via ESP32 GPIO pins."""

from machine import Pin
from esp32_gpio_lcd import GpioLcd
from utime import sleep_ms, ticks_ms


def test_main():
    """Test function for verifying basic functionality."""
    print("Running test_main")
    lcd = GpioLcd(rs_pin=Pin(4),
                  enable_pin=Pin(15),
                  d4_pin=Pin(5),
                  d5_pin=Pin(18),
                  d6_pin=Pin(21),
                  d7_pin=Pin(22),
                  num_lines=2, num_columns=20)
    lcd.putstr("It Works!\nSecond Line\nThird Line\nFourth Line")
    sleep_ms(1000)
    lcd.clear()
    count = 0
    while True:
        lcd.move_to(2, 0) #el primero se mueve en la posición de col el segundo en filas
        #lcd.putstr("%5d" % (count))#cantidad de espacios a dejar como ref
        lcd.putstr(str(count))
        count += 1

test_main()