def __init__(self, sim=False, font_path="."):
if sim:
from lcdsim import LCDSim as LCD
self._lcd = LCD(font_path=font_path)
self._sim = True
else:
import Adafruit_CharLCD as LCD
self._lcd = LCD.Adafruit_CharLCDPlate()
self._sim = False
# load custom chars
num = 0
for data in self.custom_chars:
self._lcd.create_char(num, list(data))
num += 1
# button map
if not self._sim:
self._button_map = {
self.BUTTON_SELECT: LCD.SELECT,
self.BUTTON_LEFT: LCD.LEFT,
self.BUTTON_RIGHT: LCD.RIGHT,
self.BUTTON_UP: LCD.UP,
self.BUTTON_DOWN: LCD.DOWN
}
def __init__(self, sim=False, font_path="."):
if sim:
from lcdsim import LCDSim as LCD
self._lcd = LCD(font_path=font_path)
self._sim = True
else:
import Adafruit_CharLCD as LCD
self._lcd = LCD.Adafruit_CharLCDPlate()
self._sim = False
# load custom chars
num = 0
for data in self.custom_chars:
self._lcd.create_char(num, list(data))
num += 1
# button map
if not self._sim:
self._button_map = {
self.BUTTON_SELECT : LCD.SELECT,
self.BUTTON_LEFT : LCD.LEFT,
self.BUTTON_RIGHT : LCD.RIGHT,
self.BUTTON_UP : LCD.UP,
self.BUTTON_DOWN : LCD.DOWN
}
class LCD16x2:
"""a wrapper class to control either an Adafruit HW display via I2C
or run a LCD simulator via pygame"""
BUTTON_SELECT = 1
BUTTON_RIGHT = 2
BUTTON_DOWN = 4
BUTTON_UP = 8
BUTTON_LEFT = 16
ALL_BUTTONS = (BUTTON_SELECT, BUTTON_RIGHT, BUTTON_DOWN, BUTTON_UP,
BUTTON_LEFT)
OFF = (0, 0, 0)
RED = (1, 0, 0)
GREEN = (0, 1, 0)
BLUE = (0, 0, 1)
YELLOW = (1, 1, 0)
TEAL = (0, 1, 1)
VIOLET = (1, 0, 1)
WHITE = (1, 1, 1)
ON = (1, 1, 1)
pi_char = chr(0xf7)
# custom chars
play_char = chr(0)
bell_char = chr(1)
# bar chars from 0 to 8
bar_chars = (chr(32), chr(1), chr(2), chr(3), chr(4), chr(5), chr(6),
chr(7), chr(0xff))
# custom chars (5x8 pixels)
# (source http://www.quinapalus.com/hd44780udg.html)
custom_chars = (
# 0: play
(0x0, 0x8, 0xc, 0xe, 0xc, 0x8, 0x0, 0x0),
# 1: 1 px bar
(0, 0, 0, 0, 0, 0, 0, 0x1f),
# 2: 2 px bar
(0, 0, 0, 0, 0, 0, 0x1f, 0x1f),
# 3: 3 px bar
(0, 0, 0, 0, 0, 0x1f, 0x1f, 0x1f),
# 4: 4 px bar
(0, 0, 0, 0, 0x1f, 0x1f, 0x1f, 0x1f),
# 5: 5 px bar
(0, 0, 0, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f),
# 6: 6 px bar
(0, 0, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f),
# 7: 7 px bar
(0, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f))
def __init__(self, sim=False, font_path="."):
if sim:
from lcdsim import LCDSim as LCD
self._lcd = LCD(font_path=font_path)
self._sim = True
else:
import Adafruit_CharLCD as LCD
self._lcd = LCD.Adafruit_CharLCDPlate()
self._sim = False
# load custom chars
num = 0
for data in self.custom_chars:
self._lcd.create_char(num, list(data))
num += 1
# button map
if not self._sim:
self._button_map = {
self.BUTTON_SELECT: LCD.SELECT,
self.BUTTON_LEFT: LCD.LEFT,
self.BUTTON_RIGHT: LCD.RIGHT,
self.BUTTON_UP: LCD.UP,
self.BUTTON_DOWN: LCD.DOWN
}
def off(self):
self.backlight(self.OFF)
def clear(self):
self._lcd.clear()
def text(self, cx, cy, txt):
self._lcd.set_cursor(cx, cy)
self._lcd.message(txt)
def backlight(self, color):
self._lcd.set_color(*color)
def buttonRead(self):
if self._sim:
return self._lcd.buttonRead()
else:
result = 0
for button in self.ALL_BUTTONS:
if self._lcd.is_pressed(self._button_map[button]):
result |= button
return result
class LCD16x2:
"""a wrapper class to control either an Adafruit HW display via I2C
or run a LCD simulator via pygame"""
BUTTON_SELECT = 1
BUTTON_RIGHT = 2
BUTTON_DOWN = 4
BUTTON_UP = 8
BUTTON_LEFT = 16
ALL_BUTTONS = (BUTTON_SELECT, BUTTON_RIGHT, BUTTON_DOWN, BUTTON_UP, BUTTON_LEFT)
OFF = (0,0,0)
RED = (1,0,0)
GREEN = (0,1,0)
BLUE = (0,0,1)
YELLOW = (1,1,0)
TEAL = (0,1,1)
VIOLET = (1,0,1)
WHITE = (1,1,1)
ON = (1,1,1)
pi_char = chr(0xf7)
# custom chars
play_char = chr(0)
bell_char = chr(1)
# bar chars from 0 to 8
bar_chars = (chr(32),chr(1),chr(2),chr(3),chr(4),chr(5),chr(6),chr(7),chr(0xff))
# custom chars (5x8 pixels)
# (source http://www.quinapalus.com/hd44780udg.html)
custom_chars = (
# 0: play
( 0x0,0x8,0xc,0xe,0xc,0x8,0x0,0x0 ),
# 1: 1 px bar
( 0,0,0,0,0,0,0,0x1f ),
# 2: 2 px bar
( 0,0,0,0,0,0,0x1f,0x1f ),
# 3: 3 px bar
( 0,0,0,0,0,0x1f,0x1f,0x1f ),
# 4: 4 px bar
( 0,0,0,0,0x1f,0x1f,0x1f,0x1f ),
# 5: 5 px bar
( 0,0,0,0x1f,0x1f,0x1f,0x1f,0x1f ),
# 6: 6 px bar
( 0,0,0x1f,0x1f,0x1f,0x1f,0x1f,0x1f ),
# 7: 7 px bar
( 0,0x1f,0x1f,0x1f,0x1f,0x1f,0x1f,0x1f )
)
def __init__(self, sim=False, font_path="."):
if sim:
from lcdsim import LCDSim as LCD
self._lcd = LCD(font_path=font_path)
self._sim = True
else:
import Adafruit_CharLCD as LCD
self._lcd = LCD.Adafruit_CharLCDPlate()
self._sim = False
# load custom chars
num = 0
for data in self.custom_chars:
self._lcd.create_char(num, list(data))
num += 1
# button map
if not self._sim:
self._button_map = {
self.BUTTON_SELECT : LCD.SELECT,
self.BUTTON_LEFT : LCD.LEFT,
self.BUTTON_RIGHT : LCD.RIGHT,
self.BUTTON_UP : LCD.UP,
self.BUTTON_DOWN : LCD.DOWN
}
def off(self):
self.backlight(self.OFF)
def clear(self):
self._lcd.clear()
def text(self, cx, cy, txt):
self._lcd.set_cursor(cx, cy)
self._lcd.message(txt)
def backlight(self, color):
self._lcd.set_color(*color)
def buttonRead(self):
if self._sim:
return self._lcd.buttonRead()
else:
result = 0
for button in self.ALL_BUTTONS:
if self._lcd.is_pressed(self._button_map[button]):
result |= button
return result
