def initialize_variables(self):
from mycodo.devices.lcd_pioled_circuitpython import LCD_Pioled_Circuitpython
try:
function_channels = db_retrieve_table_daemon(
FunctionChannel).filter(
FunctionChannel.function_id == self.unique_id).all()
self.options_channels = self.setup_custom_channel_options_json(
FUNCTION_INFORMATION['custom_channel_options'],
function_channels)
for each_set in range(self.number_line_sets):
self.line_sets.append([])
for each_line in range(lcd_lines):
self.line_sets[each_set].append(each_line)
self.logger.debug("Line sets: {}".format(self.line_sets))
lcd_settings_dict = {
"unique_id": self.unique_id,
"interface": "I2C",
"i2c_address": self.i2c_address,
"i2c_bus": self.i2c_bus,
"x_characters": lcd_x_characters,
"lcd_type": "128x64_pioled_circuit_python"
}
self.device = LCD_Pioled_Circuitpython(
lcd_settings_dict=lcd_settings_dict)
self.device.lcd_init()
self.logger.debug("LCD Function started")
except:
self.logger.exception("Starting LCD Function")
class CustomModule(AbstractFunction):
"""
Class to operate custom controller
"""
def __init__(self, function, testing=False):
super(CustomModule, self).__init__(function,
testing=testing,
name=__name__)
self.options_channels = {}
self.device = None
self.timer_loop = time.time()
self.line_sets = []
self.current_line_set = 0
self.line_y_dimensions = [0, 8, 16, 24, 32, 40, 48, 56]
self.pad = -2
# Initialize custom options
self.period = None
self.spi_bus = None
self.spi_device = None
self.pin_dc = None
self.pin_reset = None
self.pin_cs = None
self.number_line_sets = None
self.pin_reset = None
# Set custom options
custom_function = db_retrieve_table_daemon(CustomController,
unique_id=self.unique_id)
self.setup_custom_options(FUNCTION_INFORMATION['custom_options'],
custom_function)
if not testing:
self.initialize_variables()
def initialize_variables(self):
from mycodo.devices.lcd_pioled_circuitpython import LCD_Pioled_Circuitpython
try:
function_channels = db_retrieve_table_daemon(
FunctionChannel).filter(
FunctionChannel.function_id == self.unique_id).all()
self.options_channels = self.setup_custom_channel_options_json(
FUNCTION_INFORMATION['custom_channel_options'],
function_channels)
for each_set in range(self.number_line_sets):
self.line_sets.append([])
for each_line in range(lcd_lines):
self.line_sets[each_set].append(each_line)
self.logger.debug("Line sets: {}".format(self.line_sets))
lcd_settings_dict = {
"unique_id": self.unique_id,
"interface": "SPI",
"spi_bus": self.spi_bus,
"spi_device": self.spi_device,
"pin_dc": self.pin_dc,
"pin_reset": self.pin_reset,
"pin_cs": self.pin_cs,
"x_characters": lcd_x_characters,
"lcd_type": "128x64_pioled_circuit_python"
}
self.device = LCD_Pioled_Circuitpython(
lcd_settings_dict=lcd_settings_dict)
self.device.lcd_init()
self.logger.debug("LCD Function started")
except:
self.logger.exception("Starting LCD Function")
def loop(self):
if self.timer_loop > time.time():
return
while self.timer_loop < time.time():
self.timer_loop += self.period
if not self.device:
self.logger.error("LCD not set up")
return
# Generate lines to display
lines_display = {}
for line in range(lcd_lines):
lines_display[line] = ""
for current_line in self.line_sets[self.current_line_set]:
current_channel = (self.current_line_set *
lcd_lines) + current_line
self.logger.debug("Channel: {}, Set: {} Line: {}, ".format(
current_channel, self.current_line_set, current_line))
try:
# Get measurement value and timestamp
if self.options_channels['line_display_type'][
current_channel] in [
'measurement_value', 'measurement_ts'
]:
lines_display[current_line] = "NONE"
measure_ts = None
measure_value = None
last_measurement = self.get_last_measurement(
self.options_channels['select_measurement']
[current_channel]['device_id'],
self.options_channels['select_measurement']
[current_channel]['measurement_id'],
max_age=self.options_channels['measure_max_age']
[current_channel])
if last_measurement:
measure_ts = last_measurement[0]
measure_value = last_measurement[1]
if self.options_channels['line_display_type'][
current_channel] == 'measurement_value':
if measure_value:
if self.options_channels['measure_decimal'][
current_channel] == 0:
val_rounded = int(
self.options_channels['measure_decimal']
[current_channel])
else:
val_rounded = round(
measure_value,
self.options_channels['measure_decimal']
[current_channel])
lines_display[
current_line] = format_measurement_line(
self.options_channels['select_measurement']
[current_channel]['device_id'],
self.options_channels['select_measurement']
[current_channel]['measurement_id'],
val_rounded, lcd_x_characters)
elif self.options_channels['line_display_type'][
current_channel] == 'measurement_ts':
if measure_ts:
# Convert UTC timestamp to local timezone
utc_dt = datetime.datetime.strptime(
measure_ts.split(".")[0], '%Y-%m-%dT%H:%M:%S')
utc_timestamp = calendar.timegm(utc_dt.timetuple())
lines_display[current_line] = str(
datetime.datetime.fromtimestamp(utc_timestamp))
elif self.options_channels['line_display_type'][
current_channel] == 'current_time':
lines_display[current_line] = time.strftime(
'%Y-%m-%d %H:%M:%S')
elif self.options_channels['line_display_type'][
current_channel] == 'text':
lines_display[current_line] = self.options_channels[
'text'][current_channel]
elif self.options_channels['line_display_type'][
current_channel] == 'blank_line':
lines_display[current_line] = ""
elif self.options_channels['line_display_type'][
current_channel] == 'ip_address':
str_ip_cmd = "ip addr | " \
"grep 'state UP' -A2 | " \
"tail -n1 | " \
"awk '{print $2}' | " \
"cut -f1 -d'/'"
ip_out, _, _ = cmd_output(str_ip_cmd)
lines_display[current_line] = ip_out.rstrip().decode(
"utf-8")
except Exception as err:
# self.logger.exception("Generating line")
self.logger.error(
"Error generating channel {} line: {}".format(
current_channel, err))
lines_display[current_line] = "ERROR"
if self.current_line_set == len(self.line_sets) - 1:
self.current_line_set = 0
else:
self.current_line_set += 1
self.logger.debug("Displaying: {}".format(lines_display))
# Display lines
self.device.lcd_init()
self.device.lcd_write_lines(lines_display[0], lines_display[1],
lines_display[2], lines_display[3])
def stop_function(self):
self.device.lcd_write_lines("Mycodo {}".format(MYCODO_VERSION),
"Display Deactivated", "", "")
class LCDController(AbstractController, threading.Thread):
"""
Class to operate LCD controller
"""
def __init__(self, ready, unique_id):
threading.Thread.__init__(self)
super(LCDController, self).__init__(ready, unique_id=unique_id, name=__name__)
self.unique_id = unique_id
self.sample_rate = 1
self.flash_lcd_on = False
self.lcd_initialized = False
self.lcd_is_on = False
self.display_sets = []
self.display_set_count = 0
self.lcd_out = None
self.lcd_type = None
self.lcd_name = None
self.lcd_period = None
self.lcd_x_characters = None
self.lcd_y_lines = None
self.timer = None
self.backlight_timer = None
self.log_level_debug = None
self.list_inputs = None
self.dict_units = None
self.lcd_string_line = {}
self.lcd_line = {}
self.lcd_text = {}
self.lcd_max_age = {}
self.lcd_decimal_places = {}
def loop(self):
if not self.lcd_initialized:
self.stop_controller()
elif (self.lcd_is_on and
self.lcd_initialized and
time.time() > self.timer):
try:
# Acquire all measurements to be displayed on the LCD
display_id = self.display_sets[self.display_set_count]
for line in range(1, self.lcd_y_lines + 1):
if not self.running:
break
if self.lcd_line[display_id][line]['id'] and self.lcd_line[display_id][line]['setup']:
self.create_lcd_line(
self.get_measurement(display_id, line),
display_id,
line)
else:
self.lcd_string_line[display_id][line] = 'LCD LINE ERROR'
# Output lines to the LCD
if self.running:
self.output_lcds()
except KeyError:
self.logger.exception(
"KeyError: Unable to output to LCD.")
except IOError:
self.logger.exception(
"IOError: Unable to output to LCD.")
except Exception:
self.logger.exception(
"Exception: Unable to output to LCD.")
# Increment display counter to show the next display
if len(self.display_sets) > 1:
if self.display_set_count < len(self.display_sets) - 1:
self.display_set_count += 1
else:
self.display_set_count = 0
self.timer = time.time() + self.lcd_period
elif not self.lcd_is_on:
# Turn backlight off
self.lcd_out.lcd_backlight(0)
if self.flash_lcd_on:
if time.time() > self.backlight_timer:
if self.lcd_is_on:
self.lcd_backlight(0)
seconds = 0.2
else:
self.output_lcds()
seconds = 1.1
self.backlight_timer = time.time() + seconds
def run_finally(self):
self.lcd_out.lcd_init() # Blank LCD
line_1 = 'Mycodo {}'.format(MYCODO_VERSION)
line_2 = 'Stop {}'.format(self.lcd_name)
self.lcd_out.lcd_write_lines(line_1, line_2, '', '')
def initialize_variables(self):
lcd_dev = db_retrieve_table_daemon(LCD, unique_id=self.unique_id)
self.lcd_type = lcd_dev.lcd_type
self.lcd_name = lcd_dev.name
self.lcd_period = lcd_dev.period
self.lcd_x_characters = lcd_dev.x_characters
self.lcd_y_lines = lcd_dev.y_lines
self.timer = time.time() + self.lcd_period
self.backlight_timer = time.time()
self.log_level_debug = lcd_dev.log_level_debug
self.set_log_level_debug(self.log_level_debug)
# Add custom measurement and units to list
self.list_inputs = add_custom_measurements(
db_retrieve_table_daemon(Measurement, entry='all'))
self.list_inputs.update(
{'input_time': {'unit': None, 'name': 'Time'}})
self.list_inputs.update(
{'pid_time': {'unit': None, 'name': 'Time'}})
self.dict_units = add_custom_units(
db_retrieve_table_daemon(Unit, entry='all'))
lcd_data = db_retrieve_table_daemon(
LCDData).filter(LCDData.lcd_id == lcd_dev.unique_id).all()
for each_lcd_display in lcd_data:
self.display_sets.append(each_lcd_display.unique_id)
self.lcd_string_line[each_lcd_display.unique_id] = {}
self.lcd_line[each_lcd_display.unique_id] = {}
self.lcd_text[each_lcd_display.unique_id] = {}
self.lcd_max_age[each_lcd_display.unique_id] = {}
self.lcd_decimal_places[each_lcd_display.unique_id] = {}
for i in range(1, self.lcd_y_lines + 1):
self.lcd_string_line[each_lcd_display.unique_id][i] = ''
self.lcd_line[each_lcd_display.unique_id][i] = {}
if i == 1:
self.lcd_text[each_lcd_display.unique_id][i] = each_lcd_display.line_1_text
self.lcd_max_age[each_lcd_display.unique_id][i] = each_lcd_display.line_1_max_age
self.lcd_decimal_places[each_lcd_display.unique_id][i] = each_lcd_display.line_1_decimal_places
elif i == 2:
self.lcd_text[each_lcd_display.unique_id][i] = each_lcd_display.line_2_text
self.lcd_max_age[each_lcd_display.unique_id][i] = each_lcd_display.line_2_max_age
self.lcd_decimal_places[each_lcd_display.unique_id][i] = each_lcd_display.line_2_decimal_places
elif i == 3:
self.lcd_text[each_lcd_display.unique_id][i] = each_lcd_display.line_3_text
self.lcd_max_age[each_lcd_display.unique_id][i] = each_lcd_display.line_3_max_age
self.lcd_decimal_places[each_lcd_display.unique_id][i] = each_lcd_display.line_3_decimal_places
elif i == 4:
self.lcd_text[each_lcd_display.unique_id][i] = each_lcd_display.line_4_text
self.lcd_max_age[each_lcd_display.unique_id][i] = each_lcd_display.line_4_max_age
self.lcd_decimal_places[each_lcd_display.unique_id][i] = each_lcd_display.line_4_decimal_places
elif i == 5:
self.lcd_text[each_lcd_display.unique_id][i] = each_lcd_display.line_5_text
self.lcd_max_age[each_lcd_display.unique_id][i] = each_lcd_display.line_5_max_age
self.lcd_decimal_places[each_lcd_display.unique_id][i] = each_lcd_display.line_5_decimal_places
elif i == 6:
self.lcd_text[each_lcd_display.unique_id][i] = each_lcd_display.line_6_text
self.lcd_max_age[each_lcd_display.unique_id][i] = each_lcd_display.line_6_max_age
self.lcd_decimal_places[each_lcd_display.unique_id][i] = each_lcd_display.line_6_decimal_places
elif i == 7:
self.lcd_text[each_lcd_display.unique_id][i] = each_lcd_display.line_7_text
self.lcd_max_age[each_lcd_display.unique_id][i] = each_lcd_display.line_7_max_age
self.lcd_decimal_places[each_lcd_display.unique_id][i] = each_lcd_display.line_7_decimal_places
elif i == 8:
self.lcd_text[each_lcd_display.unique_id][i] = each_lcd_display.line_8_text
self.lcd_max_age[each_lcd_display.unique_id][i] = each_lcd_display.line_8_max_age
self.lcd_decimal_places[each_lcd_display.unique_id][i] = each_lcd_display.line_8_decimal_places
if self.lcd_y_lines in [2, 4, 8]:
self.setup_lcd_line(
each_lcd_display.unique_id, 1,
each_lcd_display.line_1_id,
each_lcd_display.line_1_measurement)
self.setup_lcd_line(
each_lcd_display.unique_id, 2,
each_lcd_display.line_2_id,
each_lcd_display.line_2_measurement)
if self.lcd_y_lines in [4, 8]:
self.setup_lcd_line(
each_lcd_display.unique_id, 3,
each_lcd_display.line_3_id,
each_lcd_display.line_3_measurement)
self.setup_lcd_line(
each_lcd_display.unique_id, 4,
each_lcd_display.line_4_id,
each_lcd_display.line_4_measurement)
if self.lcd_y_lines == 8:
self.setup_lcd_line(
each_lcd_display.unique_id, 5,
each_lcd_display.line_5_id,
each_lcd_display.line_5_measurement)
self.setup_lcd_line(
each_lcd_display.unique_id, 6,
each_lcd_display.line_6_id,
each_lcd_display.line_6_measurement)
self.setup_lcd_line(
each_lcd_display.unique_id, 7,
each_lcd_display.line_7_id,
each_lcd_display.line_7_measurement)
self.setup_lcd_line(
each_lcd_display.unique_id, 8,
each_lcd_display.line_8_id,
each_lcd_display.line_8_measurement)
if self.lcd_type in ['16x2_generic',
'20x4_generic']:
from mycodo.devices.lcd_generic import LCD_Generic
self.lcd_out = LCD_Generic(lcd_dev)
self.lcd_init()
elif self.lcd_type in ['16x2_grove_lcd_rgb']:
from mycodo.devices.lcd_grove_lcd_rgb import LCD_Grove_LCD_RGB
self.lcd_out = LCD_Grove_LCD_RGB(lcd_dev)
self.lcd_init()
elif self.lcd_type in ['128x32_pioled',
'128x64_pioled']:
from mycodo.devices.lcd_pioled import LCD_Pioled
self.lcd_out = LCD_Pioled(lcd_dev)
self.lcd_init()
elif self.lcd_type in ['128x32_pioled_circuit_python',
'128x64_pioled_circuit_python']:
from mycodo.devices.lcd_pioled_circuitpython import LCD_Pioled_Circuitpython
self.lcd_out = LCD_Pioled_Circuitpython(lcd_dev)
self.lcd_init()
else:
self.logger.error("Unknown LCD type: {}".format(self.lcd_type))
if self.lcd_initialized:
line_1 = 'Mycodo {}'.format(MYCODO_VERSION)
line_2 = 'Start {}'.format(self.lcd_name)
self.lcd_out.lcd_write_lines(line_1, line_2, '', '')
def lcd_init(self):
self.lcd_out.lcd_init()
self.lcd_initialized = True
self.lcd_is_on = True
def get_measurement(self, display_id, i):
try:
if self.lcd_line[display_id][i]['measure'] == 'TEXT':
# Display custom, user-entered text
self.lcd_line[display_id][i]['name'] = ''
self.lcd_line[display_id][i]['unit'] = ''
if len(self.lcd_text[display_id][i]) > self.lcd_x_characters:
self.lcd_line[display_id][i]['measure_val'] = self.lcd_text[display_id][i][:self.lcd_x_characters]
else:
self.lcd_line[display_id][i]['measure_val'] = self.lcd_text[display_id][i]
return True
elif self.lcd_line[display_id][i]['measure'] == 'BLANK':
# Display an empty line
self.lcd_line[display_id][i]['name'] = ''
self.lcd_line[display_id][i]['unit'] = ''
self.lcd_line[display_id][i]['measure_val'] = ''
return True
elif self.lcd_line[display_id][i]['measure'] == 'IP':
# Display the device's IP address
str_ip_cmd = "ip addr | grep 'state UP' -A2 | tail -n1 | awk '{print $2}' | cut -f1 -d'/'"
ip_out, _, _ = cmd_output(str_ip_cmd)
self.lcd_line[display_id][i]['name'] = ''
self.lcd_line[display_id][i]['unit'] = ''
self.lcd_line[display_id][i]['measure_val'] = ip_out.rstrip().decode("utf-8")
return True
elif self.lcd_line[display_id][i]['measure'] == 'output_state':
# Display the GPIO state
# TODO: Currently not a selectable option in the LCD Line dropdown
self.lcd_line[display_id][i]['measure_val'] = self.output_state(
self.lcd_line[display_id][i]['id'])
return True
else:
if self.lcd_line[display_id][i]['measure'] == 'time':
# Display the time of the last measurement
last_measurement = read_last_influxdb(
self.lcd_line[display_id][i]['id'],
'/.*/',
None,
duration_sec=self.lcd_max_age[display_id][i])
else:
last_measurement = read_last_influxdb(
self.lcd_line[display_id][i]['id'],
self.lcd_line[display_id][i]['unit'],
self.lcd_line[display_id][i]['channel'],
measure=self.lcd_line[display_id][i]['measure'],
duration_sec=self.lcd_max_age[display_id][i])
if last_measurement:
self.lcd_line[display_id][i]['time'] = last_measurement[0]
if self.lcd_decimal_places[display_id][i] == 0:
self.lcd_line[display_id][i]['measure_val'] = int(last_measurement[1])
else:
self.lcd_line[display_id][i]['measure_val'] = round(
last_measurement[1], self.lcd_decimal_places[display_id][i])
utc_dt = datetime.datetime.strptime(
self.lcd_line[display_id][i]['time'].split(".")[0],
'%Y-%m-%dT%H:%M:%S')
utc_timestamp = calendar.timegm(utc_dt.timetuple())
local_timestamp = str(datetime.datetime.fromtimestamp(utc_timestamp))
self.logger.debug("Latest {}: {} @ {}".format(
self.lcd_line[display_id][i]['measure'],
self.lcd_line[display_id][i]['measure_val'], local_timestamp))
return True
else:
self.lcd_line[display_id][i]['time'] = None
self.lcd_line[display_id][i]['measure_val'] = None
self.logger.debug("No data returned from influxdb")
return False
except Exception as except_msg:
self.logger.debug(
"Failed to read measurement from the influxdb database: "
"{err}".format(err=except_msg))
return False
def create_lcd_line(self, last_measurement_success, display_id, i):
try:
if last_measurement_success:
if self.lcd_line[display_id][i]['unit'] in self.dict_units:
unit_display = self.dict_units[self.lcd_line[display_id][i]['unit']]['unit']
else:
unit_display = ''
if unit_display:
unit_length = len(unit_display.replace('°', u''))
else:
unit_length = 0
# Produce the line that will be displayed on the LCD
if self.lcd_line[display_id][i]['measure'] == 'time':
# Convert UTC timestamp to local timezone
utc_dt = datetime.datetime.strptime(
self.lcd_line[display_id][i]['time'].split(".")[0],
'%Y-%m-%dT%H:%M:%S')
utc_timestamp = calendar.timegm(utc_dt.timetuple())
self.lcd_string_line[display_id][i] = str(
datetime.datetime.fromtimestamp(utc_timestamp))
elif unit_length > 0:
value_length = len(str(
self.lcd_line[display_id][i]['measure_val']))
name_length = self.lcd_x_characters - value_length - unit_length - 2
name_cropped = self.lcd_line[display_id][i]['name'].ljust(name_length)[:name_length]
self.lcd_string_line[display_id][i] = '{name} {value} {unit}'.format(
name=name_cropped,
value=self.lcd_line[display_id][i]['measure_val'],
unit=unit_display.replace('°', u''))
else:
value_length = len(str(
self.lcd_line[display_id][i]['measure_val']))
name_length = self.lcd_x_characters - value_length - 1
name_cropped = self.lcd_line[display_id][i]['name'][:name_length]
if name_cropped != '':
line_str = '{name} {value}'.format(
name=name_cropped,
value=self.lcd_line[display_id][i]['measure_val'])
else:
line_str = self.lcd_line[display_id][i]['measure_val']
self.lcd_string_line[display_id][i] = line_str
else:
error = 'NO DATA'
name_length = self.lcd_x_characters - len(error) - 1
name_cropped = self.lcd_line[display_id][i]['name'].ljust(name_length)[:name_length]
self.lcd_string_line[display_id][i] = '{name} {error}'.format(
name=name_cropped, error=error)
except Exception as except_msg:
self.logger.exception("Error: {err}".format(err=except_msg))
def output_lcds(self):
""" Output to all LCDs all at once """
line_1 = ''
line_2 = ''
line_3 = ''
line_4 = ''
line_5 = ''
line_6 = ''
line_7 = ''
line_8 = ''
self.lcd_out.lcd_init()
display_id = self.display_sets[self.display_set_count]
if 1 in self.lcd_string_line[display_id] and self.lcd_string_line[display_id][1]:
line_1 = self.lcd_string_line[display_id][1]
if 2 in self.lcd_string_line[display_id] and self.lcd_string_line[display_id][2]:
line_2 = self.lcd_string_line[display_id][2]
if 3 in self.lcd_string_line[display_id] and self.lcd_string_line[display_id][3]:
line_3 = self.lcd_string_line[display_id][3]
if 4 in self.lcd_string_line[display_id] and self.lcd_string_line[display_id][4]:
line_4 = self.lcd_string_line[display_id][4]
if 5 in self.lcd_string_line[display_id] and self.lcd_string_line[display_id][5]:
line_5 = self.lcd_string_line[display_id][5]
if 6 in self.lcd_string_line[display_id] and self.lcd_string_line[display_id][6]:
line_6 = self.lcd_string_line[display_id][6]
if 7 in self.lcd_string_line[display_id] and self.lcd_string_line[display_id][7]:
line_7 = self.lcd_string_line[display_id][7]
if 8 in self.lcd_string_line[display_id] and self.lcd_string_line[display_id][8]:
line_8 = self.lcd_string_line[display_id][8]
if self.lcd_type in ['128x32_pioled',
'128x32_pioled_circuit_python',
'16x2_generic',
'20x4_generic',
'16x2_grove_lcd_rgb']:
self.lcd_out.lcd_write_lines(line_1, line_2, line_3, line_4)
elif self.lcd_type in ['128x64_pioled', '128x64_pioled_circuit_python']:
self.lcd_out.lcd_write_lines(line_1, line_2, line_3, line_4,
message_line_5=line_5,
message_line_6=line_6,
message_line_7=line_7,
message_line_8=line_8)
def output_state(self, output_id):
output = db_retrieve_table_daemon(Output, unique_id=output_id)
try:
import RPi.GPIO as GPIO
GPIO.setmode(GPIO.BCM)
if GPIO.input(output.pin) == output.on_state:
gpio_state = 'On'
else:
gpio_state = 'Off'
return gpio_state
except:
self.logger.error(
"RPi.GPIO and Raspberry Pi required for this action")
def setup_lcd_line(self, display_id, line, device_id, measurement_id):
if measurement_id == 'output':
device_measurement = db_retrieve_table_daemon(
Output, unique_id=device_id)
elif measurement_id in ['BLANK', 'IP', 'TEXT']:
device_measurement = None
else:
device_measurement = db_retrieve_table_daemon(
DeviceMeasurements, unique_id=measurement_id)
if device_measurement:
conversion = db_retrieve_table_daemon(
Conversion, unique_id=device_measurement.conversion_id)
channel, unit, measurement = return_measurement_info(
device_measurement, conversion)
else:
channel = None
unit = None
measurement = None
self.lcd_line[display_id][line]['setup'] = False
self.lcd_line[display_id][line]['id'] = device_id
self.lcd_line[display_id][line]['name'] = None
self.lcd_line[display_id][line]['unit'] = unit
self.lcd_line[display_id][line]['measure'] = measurement
self.lcd_line[display_id][line]['channel'] = channel
if 'time' in measurement_id:
self.lcd_line[display_id][line]['measure'] = 'time'
elif measurement_id in ['BLANK', 'IP', 'TEXT']:
self.lcd_line[display_id][line]['measure'] = measurement_id
self.lcd_line[display_id][line]['name'] = ''
if not device_id:
return
if unit in self.dict_units:
self.lcd_line[display_id][line]['unit'] = unit
else:
self.lcd_line[display_id][line]['unit'] = ''
# Determine the name
controllers = [
Output,
PID,
Input,
Math
]
for each_controller in controllers:
controller_found = db_retrieve_table_daemon(each_controller, unique_id=device_id)
if controller_found:
self.lcd_line[display_id][line]['name'] = controller_found.name
if (self.lcd_line[display_id][line]['measure'] in ['BLANK', 'IP', 'TEXT', 'time'] or
None not in [self.lcd_line[display_id][line]['name'],
self.lcd_line[display_id][line]['unit']]):
self.lcd_line[display_id][line]['setup'] = True
def lcd_backlight(self, state):
""" Turn the backlight on or off """
if state:
self.lcd_out.lcd_backlight(state)
self.lcd_is_on = True
self.timer = time.time() - 1 # Induce LCD to update after turning backlight on
else:
self.lcd_is_on = False # Instruct LCD backlight to turn off
def lcd_backlight_color(self, color):
""" Set backlight color """
self.lcd_out.lcd_backlight_color(color)
self.timer = time.time() - 1 # Induce LCD to update after turning backlight on
def lcd_flash(self, state):
""" Enable the LCD to begin or end flashing """
if state:
self.flash_lcd_on = True
return 1, "LCD {} Flashing Turned On".format(self.unique_id)
else:
self.flash_lcd_on = False
self.lcd_backlight(True)
return 1, "LCD {} Reset".format(self.unique_id)
def initialize_variables(self):
lcd_dev = db_retrieve_table_daemon(LCD, unique_id=self.unique_id)
self.lcd_type = lcd_dev.lcd_type
self.lcd_name = lcd_dev.name
self.lcd_period = lcd_dev.period
self.lcd_x_characters = lcd_dev.x_characters
self.lcd_y_lines = lcd_dev.y_lines
self.timer = time.time() + self.lcd_period
self.backlight_timer = time.time()
self.log_level_debug = lcd_dev.log_level_debug
self.set_log_level_debug(self.log_level_debug)
# Add custom measurement and units to list
self.list_inputs = add_custom_measurements(
db_retrieve_table_daemon(Measurement, entry='all'))
self.list_inputs.update(
{'input_time': {'unit': None, 'name': 'Time'}})
self.list_inputs.update(
{'pid_time': {'unit': None, 'name': 'Time'}})
self.dict_units = add_custom_units(
db_retrieve_table_daemon(Unit, entry='all'))
lcd_data = db_retrieve_table_daemon(
LCDData).filter(LCDData.lcd_id == lcd_dev.unique_id).all()
for each_lcd_display in lcd_data:
self.display_sets.append(each_lcd_display.unique_id)
self.lcd_string_line[each_lcd_display.unique_id] = {}
self.lcd_line[each_lcd_display.unique_id] = {}
self.lcd_text[each_lcd_display.unique_id] = {}
self.lcd_max_age[each_lcd_display.unique_id] = {}
self.lcd_decimal_places[each_lcd_display.unique_id] = {}
for i in range(1, self.lcd_y_lines + 1):
self.lcd_string_line[each_lcd_display.unique_id][i] = ''
self.lcd_line[each_lcd_display.unique_id][i] = {}
if i == 1:
self.lcd_text[each_lcd_display.unique_id][i] = each_lcd_display.line_1_text
self.lcd_max_age[each_lcd_display.unique_id][i] = each_lcd_display.line_1_max_age
self.lcd_decimal_places[each_lcd_display.unique_id][i] = each_lcd_display.line_1_decimal_places
elif i == 2:
self.lcd_text[each_lcd_display.unique_id][i] = each_lcd_display.line_2_text
self.lcd_max_age[each_lcd_display.unique_id][i] = each_lcd_display.line_2_max_age
self.lcd_decimal_places[each_lcd_display.unique_id][i] = each_lcd_display.line_2_decimal_places
elif i == 3:
self.lcd_text[each_lcd_display.unique_id][i] = each_lcd_display.line_3_text
self.lcd_max_age[each_lcd_display.unique_id][i] = each_lcd_display.line_3_max_age
self.lcd_decimal_places[each_lcd_display.unique_id][i] = each_lcd_display.line_3_decimal_places
elif i == 4:
self.lcd_text[each_lcd_display.unique_id][i] = each_lcd_display.line_4_text
self.lcd_max_age[each_lcd_display.unique_id][i] = each_lcd_display.line_4_max_age
self.lcd_decimal_places[each_lcd_display.unique_id][i] = each_lcd_display.line_4_decimal_places
elif i == 5:
self.lcd_text[each_lcd_display.unique_id][i] = each_lcd_display.line_5_text
self.lcd_max_age[each_lcd_display.unique_id][i] = each_lcd_display.line_5_max_age
self.lcd_decimal_places[each_lcd_display.unique_id][i] = each_lcd_display.line_5_decimal_places
elif i == 6:
self.lcd_text[each_lcd_display.unique_id][i] = each_lcd_display.line_6_text
self.lcd_max_age[each_lcd_display.unique_id][i] = each_lcd_display.line_6_max_age
self.lcd_decimal_places[each_lcd_display.unique_id][i] = each_lcd_display.line_6_decimal_places
elif i == 7:
self.lcd_text[each_lcd_display.unique_id][i] = each_lcd_display.line_7_text
self.lcd_max_age[each_lcd_display.unique_id][i] = each_lcd_display.line_7_max_age
self.lcd_decimal_places[each_lcd_display.unique_id][i] = each_lcd_display.line_7_decimal_places
elif i == 8:
self.lcd_text[each_lcd_display.unique_id][i] = each_lcd_display.line_8_text
self.lcd_max_age[each_lcd_display.unique_id][i] = each_lcd_display.line_8_max_age
self.lcd_decimal_places[each_lcd_display.unique_id][i] = each_lcd_display.line_8_decimal_places
if self.lcd_y_lines in [2, 4, 8]:
self.setup_lcd_line(
each_lcd_display.unique_id, 1,
each_lcd_display.line_1_id,
each_lcd_display.line_1_measurement)
self.setup_lcd_line(
each_lcd_display.unique_id, 2,
each_lcd_display.line_2_id,
each_lcd_display.line_2_measurement)
if self.lcd_y_lines in [4, 8]:
self.setup_lcd_line(
each_lcd_display.unique_id, 3,
each_lcd_display.line_3_id,
each_lcd_display.line_3_measurement)
self.setup_lcd_line(
each_lcd_display.unique_id, 4,
each_lcd_display.line_4_id,
each_lcd_display.line_4_measurement)
if self.lcd_y_lines == 8:
self.setup_lcd_line(
each_lcd_display.unique_id, 5,
each_lcd_display.line_5_id,
each_lcd_display.line_5_measurement)
self.setup_lcd_line(
each_lcd_display.unique_id, 6,
each_lcd_display.line_6_id,
each_lcd_display.line_6_measurement)
self.setup_lcd_line(
each_lcd_display.unique_id, 7,
each_lcd_display.line_7_id,
each_lcd_display.line_7_measurement)
self.setup_lcd_line(
each_lcd_display.unique_id, 8,
each_lcd_display.line_8_id,
each_lcd_display.line_8_measurement)
if self.lcd_type in ['16x2_generic',
'20x4_generic']:
from mycodo.devices.lcd_generic import LCD_Generic
self.lcd_out = LCD_Generic(lcd_dev)
self.lcd_init()
elif self.lcd_type in ['16x2_grove_lcd_rgb']:
from mycodo.devices.lcd_grove_lcd_rgb import LCD_Grove_LCD_RGB
self.lcd_out = LCD_Grove_LCD_RGB(lcd_dev)
self.lcd_init()
elif self.lcd_type in ['128x32_pioled',
'128x64_pioled']:
from mycodo.devices.lcd_pioled import LCD_Pioled
self.lcd_out = LCD_Pioled(lcd_dev)
self.lcd_init()
elif self.lcd_type in ['128x32_pioled_circuit_python',
'128x64_pioled_circuit_python']:
from mycodo.devices.lcd_pioled_circuitpython import LCD_Pioled_Circuitpython
self.lcd_out = LCD_Pioled_Circuitpython(lcd_dev)
self.lcd_init()
else:
self.logger.error("Unknown LCD type: {}".format(self.lcd_type))
if self.lcd_initialized:
line_1 = 'Mycodo {}'.format(MYCODO_VERSION)
line_2 = 'Start {}'.format(self.lcd_name)
self.lcd_out.lcd_write_lines(line_1, line_2, '', '')