# SPDX-FileCopyrightText: 2018 Kattni Rembor for Adafruit Industries
#
# SPDX-License-Identifier: MIT
"""
`adafruit_character_lcd.character_lcd_rgb_i2c`
====================================================
Module for using I2C with I2C RGB LCD Shield or I2C RGB LCD Pi Plate
* Author(s): Kattni Rembor
Implementation Notes
--------------------
**Hardware:**
* `RGB LCD Shield Kit w/ 16x2 Character Display - Negative Display
<https://www.adafruit.com/product/714>`_ (Product ID: 714)
* `RGB LCD Shield Kit w/ 16x2 Character Display - Positive Display
<https://www.adafruit.com/product/716>`_ (Product ID: 716)
* `Adafruit RGB Negative 16x2 LCD+Keypad Kit for Raspberry Pi
<https://www.adafruit.com/product/1110>`_ (Product ID: 1110)
* `Adafruit RGB Positive 16x2 LCD+Keypad Kit for Raspberry Pi
<https://www.adafruit.com/product/1109>`_ (Product ID: 1109)
**Software and Dependencies:**
* Adafruit CircuitPython firmware for the supported boards:
https://circuitpython.org/downloads
* Adafruit's Bus Device library:
https://github.com/adafruit/Adafruit_CircuitPython_BusDevice
"""
import digitalio
from adafruit_mcp230xx.mcp23017 import MCP23017
from adafruit_character_lcd.character_lcd import Character_LCD_RGB
__version__ = "0.0.0-auto.0"
__repo__ = "https://github.com/adafruit/Adafruit_CircuitPython_CharLCD.git"
[docs]class Character_LCD_RGB_I2C(Character_LCD_RGB):
"""RGB Character LCD connected to I2C shield or Pi plate using I2C connection.
This is a subclass of `Character_LCD_RGB` and implements all of the same
functions and functionality.
To use, import and initialise as follows:
.. code-block:: python
import board
from adafruit_character_lcd.character_lcd_rgb_i2c import Character_LCD_RGB_I2C
i2c = board.I2C() # uses board.SCL and board.SDA
lcd = Character_LCD_RGB_I2C(i2c, 16, 2)
"""
def __init__(self, i2c, columns, lines, address=None):
# pylint: disable=too-many-locals
"""Initialize RGB character LCD connected to shield using I2C connection
on the specified I2C bus with the specified number of columns and lines
on the display.
"""
if address:
mcp = MCP23017(i2c, address=address)
else:
mcp = MCP23017(i2c)
self._left_button = mcp.get_pin(4)
self._up_button = mcp.get_pin(3)
self._down_button = mcp.get_pin(2)
self._right_button = mcp.get_pin(1)
self._select_button = mcp.get_pin(0)
self._buttons = [
self._left_button,
self._up_button,
self._down_button,
self._right_button,
self._select_button,
]
for pin in self._buttons:
pin.switch_to_input(pull=digitalio.Pull.UP)
super().__init__(
mcp.get_pin(15),
mcp.get_pin(13),
mcp.get_pin(12),
mcp.get_pin(11),
mcp.get_pin(10),
mcp.get_pin(9),
columns,
lines,
mcp.get_pin(6),
mcp.get_pin(7),
mcp.get_pin(8),
mcp.get_pin(14),
)
@property
def left_button(self):
"""The left button on the RGB Character LCD I2C Shield or Pi plate.
The following example prints "Left!" to the LCD when the left button is pressed:
.. code-block:: python
import board
from adafruit_character_lcd.character_lcd_rgb_i2c import Character_LCD_RGB_I2C
i2c = board.I2C() # uses board.SCL and board.SDA
lcd = Character_LCD_RGB_I2C(i2c, 16, 2)
while True:
if lcd.left_button:
lcd.message = "Left!"
"""
return not self._left_button.value
@property
def up_button(self):
"""The up button on the RGB Character LCD I2C Shield or Pi plate.
The following example prints "Up!" to the LCD when the up button is pressed:
.. code-block:: python
import board
from adafruit_character_lcd.character_lcd_rgb_i2c import Character_LCD_RGB_I2C
i2c = board.I2C() # uses board.SCL and board.SDA
lcd = Character_LCD_RGB_I2C(i2c, 16, 2)
while True:
if lcd.up_button:
lcd.message = "Up!"
"""
return not self._up_button.value
@property
def down_button(self):
"""The down button on the RGB Character LCD I2C Shield or Pi plate.
The following example prints "Down!" to the LCD when the down button is pressed:
.. code-block:: python
import board
from adafruit_character_lcd.character_lcd_rgb_i2c import Character_LCD_RGB_I2C
i2c = board.I2C() # uses board.SCL and board.SDA
lcd = Character_LCD_RGB_I2C(i2c, 16, 2)
while True:
if lcd.down_button:
lcd.message = "Down!"
"""
return not self._down_button.value
@property
def right_button(self):
"""The right button on the RGB Character LCD I2C Shield or Pi plate.
The following example prints "Right!" to the LCD when the right button is pressed:
.. code-block:: python
import board
from adafruit_character_lcd.character_lcd_rgb_i2c import Character_LCD_RGB_I2C
i2c = board.I2C() # uses board.SCL and board.SDA
lcd = Character_LCD_RGB_I2C(i2c, 16, 2)
while True:
if lcd.right_button:
lcd.message = "Right!"
"""
return not self._right_button.value
@property
def select_button(self):
"""The select button on the RGB Character LCD I2C Shield or Pi plate.
The following example prints "Select!" to the LCD when the select button is pressed:
.. code-block:: python
import board
from adafruit_character_lcd.character_lcd_rgb_i2c import Character_LCD_RGB_I2C
i2c = board.I2C() # uses board.SCL and board.SDA
lcd = Character_LCD_RGB_I2C(i2c, 16, 2)
while True:
if lcd.select_button:
lcd.message = "Select!"
"""
return not self._select_button.value