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57 lines
1.7 KiB
Python
57 lines
1.7 KiB
Python
import esphome.codegen as cg
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import esphome.config_validation as cv
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from esphome import pins
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from esphome.components import display, spi
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from esphome.const import (
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CONF_DC_PIN,
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CONF_ID,
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CONF_LAMBDA,
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CONF_PAGES,
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CONF_RESET_PIN,
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CONF_CS_PIN,
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CONF_CONTRAST,
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)
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DEPENDENCIES = ["spi"]
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pcd8544_ns = cg.esphome_ns.namespace("pcd8544")
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PCD8544 = pcd8544_ns.class_(
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"PCD8544", cg.PollingComponent, display.DisplayBuffer, spi.SPIDevice
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)
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CONFIG_SCHEMA = cv.All(
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display.FULL_DISPLAY_SCHEMA.extend(
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{
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cv.GenerateID(): cv.declare_id(PCD8544),
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cv.Required(CONF_DC_PIN): pins.gpio_output_pin_schema,
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cv.Required(CONF_RESET_PIN): pins.gpio_output_pin_schema,
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cv.Required(CONF_CS_PIN): pins.gpio_output_pin_schema, # CE
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cv.Optional(CONF_CONTRAST, default=0x7F): cv.int_,
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}
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)
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.extend(cv.polling_component_schema("1s"))
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.extend(spi.spi_device_schema()),
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cv.has_at_most_one_key(CONF_PAGES, CONF_LAMBDA),
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)
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async def to_code(config):
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var = cg.new_Pvariable(config[CONF_ID])
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await cg.register_component(var, config)
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await display.register_display(var, config)
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await spi.register_spi_device(var, config)
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dc = await cg.gpio_pin_expression(config[CONF_DC_PIN])
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cg.add(var.set_dc_pin(dc))
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reset = await cg.gpio_pin_expression(config[CONF_RESET_PIN])
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cg.add(var.set_reset_pin(reset))
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cg.add(var.set_contrast(config[CONF_CONTRAST]))
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if CONF_LAMBDA in config:
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lambda_ = await cg.process_lambda(
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config[CONF_LAMBDA], [(display.DisplayBufferRef, "it")], return_type=cg.void
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)
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cg.add(var.set_writer(lambda_))
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