mirror of
https://github.com/Threnklyn/esphome-dev.git
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Dimitris Zervas
e536316e3d
* Add contrast option to PCD8544. Closes #1519 * Minor fixes as instructed by @jesserockz
43 lines
1.6 KiB
Python
43 lines
1.6 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, CONF_ID, CONF_LAMBDA, CONF_PAGES, CONF_RESET_PIN, CONF_CS_PIN, 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_('PCD8544', cg.PollingComponent, display.DisplayBuffer, spi.SPIDevice)
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CONFIG_SCHEMA = cv.All(display.FULL_DISPLAY_SCHEMA.extend({
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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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}).extend(cv.polling_component_schema('1s')).extend(spi.spi_device_schema()),
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cv.has_at_most_one_key(CONF_PAGES, CONF_LAMBDA))
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def to_code(config):
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var = cg.new_Pvariable(config[CONF_ID])
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yield cg.register_component(var, config)
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yield display.register_display(var, config)
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yield spi.register_spi_device(var, config)
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dc = yield cg.gpio_pin_expression(config[CONF_DC_PIN])
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cg.add(var.set_dc_pin(dc))
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reset = yield 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_ = yield cg.process_lambda(config[CONF_LAMBDA], [(display.DisplayBufferRef, 'it')],
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return_type=cg.void)
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cg.add(var.set_writer(lambda_))
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