e = int(options_pop('e'))
rw = options_pop('rw', 'None')
rw = None if rw == 'None' else int(rw)
bl = options_pop('bl', 'None')
bl = None if bl == 'None' else int(bl)
# Parse data pins into a list
pins_data = {}
pins_data = data.split(',')
# Convert data pins to int
pins_data = [int(pin) for pin in pins_data]
lcd = gpio.CharLCD(pin_rs=rs,
pin_rw=rw,
pin_e=e,
pins_data=pins_data,
pin_backlight=bl,
numbering_mode=numbering_mode,
cols=cols,
rows=rows,
charmap=charmap)
else:
print_usage(
'Connection type %s is not supported. Must be either i2c or gpio' %
lcdmode)
# Run selected test
if test == 'show_charmap':
show_charmap.run(lcd, rows, cols)
elif test == 'testsuite':
if cols == 20 and rows == 4:
testsuite_20x4.run(lcd)
# Parse command line parameters
if len(sys.argv) < 2:
print_usage()
if sys.argv[1] == 'i2c':
if len(sys.argv) != 4:
print_usage()
lcd = i2c.CharLCD(int(sys.argv[2], 16),
cols=16,
rows=2,
charmap=sys.argv[3])
elif sys.argv[1] == 'gpio':
if len(sys.argv) != 3:
print_usage()
lcd = gpio.CharLCD(cols=16, rows=2, charmap=sys.argv[2])
else:
print_usage()
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)'
def run():
if len(sys.argv) < 3:
print_usage()
lcdmode = sys.argv[1]
test = sys.argv[2]
# Parse options into a dictionary
try:
options = dict([arg.split('=', 1) for arg in sys.argv[3:]])
except ValueError:
print_usage(
'Malformed option detected, must be in the form option=value')
# Common options
cols = int(options_pop('cols'))
rows = int(options_pop('rows'))
charmap = options_pop('charmap', 'A00')
if lcdmode == 'i2c':
from RPLCD import i2c
if len(sys.argv) < 5:
print_usage()
# i2c options, pop all required options, pass remaining options to expander_params
i2c_expander = options_pop('expander')
address = int(options_pop('addr'), 16)
port = int(options_pop('port', '1'))
try:
lcd = i2c.CharLCD(i2c_expander,
address,
port=port,
charmap=charmap,
cols=cols,
rows=rows,
expander_params=options)
except IOError:
print_usage(
'IOError: Usually caused by the wrong i2c address/port '
'or device not connected properly')
elif lcdmode == 'gpio':
import RPi.GPIO as GPIO
from RPLCD import gpio
if len(sys.argv) < 8:
print_usage()
# gpio options
mode = options_pop('mode')
if mode == 'BCM':
numbering_mode = GPIO.BCM
elif mode == 'BOARD':
numbering_mode = GPIO.BOARD
else:
print_usage(
'Invalid GPIO numbering mode: %s, must be either BOARD or BCM'
% mode)
data = options_pop('data')
rs = int(options_pop('rs'))
e = int(options_pop('e'))
rw = options_pop('rw', 'None')
rw = None if rw == 'None' else int(rw)
bl = options_pop('bl', 'None')
bl = None if bl == 'None' else int(bl)
# Parse data pins into a list
pins_data = {}
pins_data = data.split(',')
# Convert data pins to int
pins_data = [int(pin) for pin in pins_data]
lcd = gpio.CharLCD(pin_rs=rs,
pin_rw=rw,
pin_e=e,
pins_data=pins_data,
pin_backlight=bl,
numbering_mode=numbering_mode,
cols=cols,
rows=rows,
charmap=charmap)
elif lcdmode == 'pigpio':
from pigpio import pi
from RPLCD import pigpio
if len(sys.argv) < 7:
print_usage()
# pigpio options
host = options_pop('host')
port = options_pop('port')
if host == 'None':
pi = pi()
elif port == 'None':
pi = pi(host)
else:
pi = pi(host, port)
data = options_pop('data')
rs = int(options_pop('rs'))
e = int(options_pop('e'))
rw = options_pop('rw', 'None')
rw = None if rw == 'None' else int(rw)
bl = options_pop('bl', 'None')
bl = None if bl == 'None' else int(bl)
# Parse data pins into a list
pins_data = {}
pins_data = data.split(',')
# Convert data pins to int
pins_data = [int(pin) for pin in pins_data]
lcd = pigpio.CharLCD(pi,
pin_rs=rs,
pin_rw=rw,
pin_e=e,
pins_data=pins_data,
pin_backlight=bl,
cols=cols,
rows=rows,
charmap=charmap)
else:
print_usage(
'Connection type %s is not supported. Must be either i2c, gpio or pigpio'
% lcdmode)
# Run selected test
if test == 'show_charmap':
show_charmap.run(lcd, rows, cols)
elif test == 'testsuite':
if cols == 20 and rows == 4:
testsuite_20x4.run(lcd)
elif cols == 16 and rows == 2:
testsuite_16x2.run(lcd)
else:
print_usage('%sx%s displays are not supported in this test.' %
(cols, rows))
else:
print_usage('Test \'%s\' is not supported.' % test)
# Parse command line parameters
if len(sys.argv) < 2:
print_usage()
if sys.argv[1] == 'i2c':
if len(sys.argv) != 7:
print_usage()
cols, rows = int(sys.argv[4]), int(sys.argv[5])
lcd = i2c.CharLCD(sys.argv[2],
int(sys.argv[3], 16),
cols=cols,
rows=rows,
charmap=sys.argv[6])
elif sys.argv[1] == 'gpio':
if len(sys.argv) != 4:
print_usage()
lcd = gpio.CharLCD(cols=cols, rows=rows, charmap=sys.argv[2])
else:
print_usage()
# Get max column index
maxcol = cols - 1
numstr = ''
lcd.backlight = True
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. ')
# Parse command line parameters
if len(sys.argv) < 2:
print_usage()
if sys.argv[1] == 'i2c':
if len(sys.argv) != 4:
print_usage()
lcd = i2c.CharLCD(int(sys.argv[2], 16),
cols=20,
rows=4,
charmap=sys.argv[3])
elif sys.argv[1] == 'gpio':
if len(sys.argv) != 3:
print_usage()
lcd = gpio.CharLCD(cols=20, rows=4, charmap=sys.argv[2])
else:
print_usage()
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)'