def _init_lcd(self):
lcd = CharLCD(i2c_expander='PCF8574',
address=self._rsc.lcd_address,
port=1,
cols=20,
rows=4,
dotsize=8,
charmap='A00',
auto_linebreaks=True,
backlight_enabled=False)
#self._lcd.backlight_enabled = False
lcd.cursor_mode = "hide"
wifi_char = (0b00000, 0b11111, 0b00000, 0b01110, 0b00000, 0b00100,
0b00100, 0b00000)
backspace_char = (0b00000, 0b00000, 0b00111, 0b01001, 0b10001, 0b01001,
0b00111, 0b00000)
enter_char = (0b00000, 0b00001, 0b00101, 0b01001, 0b11111, 0b01000,
0b00100, 0b00000)
lcd.create_char(0, wifi_char)
lcd.create_char(1, backspace_char)
lcd.create_char(2, enter_char)
return lcd
from RPLCD.i2c import CharLCD
from time import sleep
from threading import Thread
lcd = CharLCD(i2c_expander='PCF8574',
address=0x3f,
port=1,
cols=20,
rows=4,
dotsize=8,
charmap='A02',
auto_linebreaks=True,
backlight_enabled=False)
lcd.cursor_mode = "hide"
lcd.write_string('PiNet -> Nexus')
lcd.cursor_pos = (2, 0)
lcd.write_string('BORG Assimilated')
lcd.cursor_pos = (3, 0)
lcd.write_string("{:^20}".format("PolyHub Listening..."))
def turnOnForSeconds(seconds=5):
backlightThread = Thread(target=timedBacklight, args=(seconds, ))
backlightThread.start()
def timedBacklight(seconds):
lcd.backlight_enabled = True
sleep(seconds)
input = raw_input
except NameError:
pass
try:
unichr = unichr
except NameError:
unichr = chr
lcd = CharLCD(0x3f)
# see note in test_16x2.py about configuring your backlight, if you have one
input('Display should be blank. ')
lcd.cursor_mode = CursorMode.blink
input('The cursor should now blink. ')
lcd.cursor_mode = CursorMode.line
input('The cursor should now be a line. ')
lcd.write_string('Hello world!')
input('"Hello world!" should be on the LCD. ')
assert lcd.cursor_pos == (0, 12), 'cursor_pos should now be (0, 12)'
lcd.cursor_pos = (1, 0)
lcd.write_string('2')
lcd.cursor_pos = (2, 0)
lcd.write_string('3')
lcd.cursor_pos = (3, 0)
# https://rplcd.readthedocs.io/en/latest/getting_started.html
from RPLCD.i2c import CharLCD
import time
lcd = CharLCD(i2c_expander='PCF8574',
address=0x27,
port=1,
cols=16,
rows=2,
dotsize=8,
charmap='A02',
auto_linebreaks=False,
backlight_enabled=True)
while (True):
lcd.clear()
lcd.cursor_pos = (0, 0)
lcd.write_string("Say something")
lcd.cursor_pos = (1, 0)
lcd.cursor_mode = 'blink'
entry = input()
lcd.write_string(entry)
time.sleep(3)
