'''
 09.10 - Use the 2x16 LCD screen with the PCF8574 I2C backpack (hardware I2C)

 This sketch shows how to display text in a 2X16 LCD display. This display uses
 the PCF8574 I2C backpack instead of the native parallel connection to save on pins.


 Components
 ----------
  - ESP32
  - 2x16 LCD (such as the HD44780) with the PCF8574 backpack.
  -     GND --> GND
  -     VCC --> 5V
  -     SDA --> GPIO 19 (HW SDA ID 0)
  -     SCL --> GPIO 18 (HW SCL ID 0)
  - Wires
  - Breadboard

 Documentation:
 Refer to the ESP32 reference page on the micropython website

 https://docs.micropython.org/en/latest/esp32/quickref.html#

 Requires:
 Additional library files are needed. These must be uploaded with the library manager.
 * lcd_api.py: https://github.com/dhylands/python_lcd/blob/master/lcd/lcd_api.py
 * esp8266_i2c_lcd.py: https://github.com/dhylands/python_lcd/blob/master/lcd/esp8266_i2c_lcd.py

'''

from machine import I2C, Pin
import esp8266_i2c_lcd as esp8266_lcd
from time import sleep

#DEFAULT_I2C_ADDR = 0x27

i2c = I2C(0)    # Using hardware I2C channel 0

lcd = esp8266_lcd.I2cLcd(i2c, esp8266_lcd.DEFAULT_I2C_ADDR, 2, 16)

lcd.clear()

counter = 0

while True:
    lcd.move_to(5, 0)
    lcd.putstr("Micro II")
    lcd.move_to(0, 1)

    counter = counter + 1
    lcd.putstr("Counter: %f" % (counter))
    print("Counter: %f" % (counter))
    sleep(1)