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40 lines
1.4 KiB
Python
40 lines
1.4 KiB
Python
import voluptuous as vol
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from esphome.components import display, i2c
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from esphome.components.display.lcd_gpio import LCDDisplay, LCDDisplayRef, \
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validate_lcd_dimensions
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import esphome.config_validation as cv
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from esphome.const import CONF_ADDRESS, CONF_DIMENSIONS, CONF_ID, CONF_LAMBDA
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from esphome.cpp_generator import Pvariable, add, process_lambda
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from esphome.cpp_helpers import setup_component
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from esphome.cpp_types import App, void
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DEPENDENCIES = ['i2c']
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PCF8574LCDDisplay = display.display_ns.class_('PCF8574LCDDisplay', LCDDisplay, i2c.I2CDevice)
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PLATFORM_SCHEMA = display.BASIC_DISPLAY_PLATFORM_SCHEMA.extend({
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cv.GenerateID(): cv.declare_variable_id(PCF8574LCDDisplay),
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vol.Required(CONF_DIMENSIONS): validate_lcd_dimensions,
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vol.Optional(CONF_ADDRESS): cv.i2c_address,
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}).extend(cv.COMPONENT_SCHEMA.schema)
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def to_code(config):
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rhs = App.make_pcf8574_lcd_display(config[CONF_DIMENSIONS][0], config[CONF_DIMENSIONS][1])
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lcd = Pvariable(config[CONF_ID], rhs)
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if CONF_ADDRESS in config:
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add(lcd.set_address(config[CONF_ADDRESS]))
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if CONF_LAMBDA in config:
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lambda_ = yield process_lambda(config[CONF_LAMBDA], [(LCDDisplayRef, 'it')],
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return_type=void)
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add(lcd.set_writer(lambda_))
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display.setup_display(lcd, config)
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setup_component(lcd, config)
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BUILD_FLAGS = ['-DUSE_LCD_DISPLAY', '-DUSE_LCD_DISPLAY_PCF8574']
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