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33 lines
936 B
Python
33 lines
936 B
Python
import esphome.codegen as cg
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import esphome.config_validation as cv
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from esphome.components import lcd_base, i2c
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from esphome.const import CONF_ID, CONF_LAMBDA
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DEPENDENCIES = ["i2c"]
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AUTO_LOAD = ["lcd_base"]
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lcd_pcf8574_ns = cg.esphome_ns.namespace("lcd_pcf8574")
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PCF8574LCDDisplay = lcd_pcf8574_ns.class_(
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"PCF8574LCDDisplay", lcd_base.LCDDisplay, i2c.I2CDevice
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)
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CONFIG_SCHEMA = lcd_base.LCD_SCHEMA.extend(
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{
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cv.GenerateID(): cv.declare_id(PCF8574LCDDisplay),
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}
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).extend(i2c.i2c_device_schema(0x3F))
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def to_code(config):
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var = cg.new_Pvariable(config[CONF_ID])
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yield lcd_base.setup_lcd_display(var, config)
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yield i2c.register_i2c_device(var, config)
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if CONF_LAMBDA in config:
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lambda_ = yield cg.process_lambda(
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config[CONF_LAMBDA],
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[(PCF8574LCDDisplay.operator("ref"), "it")],
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return_type=cg.void,
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)
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cg.add(var.set_writer(lambda_))
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