esphome/esphome/components/waveshare_epaper_1in9_i2c/display.py

77 lines
2.4 KiB
Python

import esphome.codegen as cg
import esphome.config_validation as cv
from esphome import pins
from esphome.components import display, i2c
from esphome.const import (
CONF_BUSY_PIN,
CONF_FULL_UPDATE_EVERY,
CONF_I2C_ID,
CONF_ID,
CONF_LAMBDA,
CONF_RESET_PIN,
)
UNITS = {
"f": "f",
"c": "c",
}
DEPENDENCIES = ["i2c"]
waveshare_epaper_1in9_i2c_ns = cg.esphome_ns.namespace("waveshare_epaper_1in9_i2c")
WaveShareEPaper1in9I2C = waveshare_epaper_1in9_i2c_ns.class_(
"WaveShareEPaper1in9I2C", cg.PollingComponent
)
WaveShareEPaper1in9I2CRef = WaveShareEPaper1in9I2C.operator("ref")
CONF_COMMAND_ADDRESS = "command_address"
CONF_DATA_ADDRESS = "data_address"
CONF_TEMPERATURE_UNIT = "temperature_unit"
CONFIG_SCHEMA = display.BASIC_DISPLAY_SCHEMA.extend(
{
cv.GenerateID(): cv.declare_id(WaveShareEPaper1in9I2C),
cv.Required(CONF_RESET_PIN): pins.gpio_output_pin_schema,
cv.Required(CONF_BUSY_PIN): pins.gpio_input_pin_schema,
cv.GenerateID(CONF_I2C_ID): cv.use_id(i2c.I2CBus),
cv.Optional(CONF_COMMAND_ADDRESS, default=0x3C): cv.int_range(min=0, max=0xFF),
cv.Optional(CONF_DATA_ADDRESS, default=0x3D): cv.int_range(min=0, max=0xFF),
cv.Optional(CONF_FULL_UPDATE_EVERY): cv.uint32_t,
cv.Optional(CONF_TEMPERATURE_UNIT, default="c"): cv.enum(UNITS),
}
).extend(cv.polling_component_schema("1s"))
async def to_code(config):
var = cg.new_Pvariable(config[CONF_ID])
await display.register_display(var, config)
reset_pin = await cg.gpio_pin_expression(config[CONF_RESET_PIN])
cg.add(var.set_reset_pin(reset_pin))
busy_pin = await cg.gpio_pin_expression(config[CONF_BUSY_PIN])
cg.add(var.set_busy_pin(busy_pin))
i2c_bus = await cg.get_variable(config[CONF_I2C_ID])
command_address = config[CONF_COMMAND_ADDRESS]
cg.add(var.create_command_device(i2c_bus, command_address))
data_address = config[CONF_DATA_ADDRESS]
cg.add(var.create_data_device(i2c_bus, data_address))
temperature_unit = config[CONF_TEMPERATURE_UNIT]
cg.add(var.set_temperature_unit(temperature_unit))
if CONF_FULL_UPDATE_EVERY in config:
cg.add(var.set_full_update_every(config[CONF_FULL_UPDATE_EVERY]))
if CONF_LAMBDA in config:
lambda_ = await cg.process_lambda(
config[CONF_LAMBDA],
[(WaveShareEPaper1in9I2CRef, "it")],
return_type=cg.void,
)
cg.add(var.set_writer(lambda_))