esphome/esphomeyaml/components/display/ssd1306_i2c.py
2019-01-03 20:39:54 +01:00

49 lines
1.8 KiB
Python

import voluptuous as vol
from esphomeyaml import pins
from esphomeyaml.components import display
from esphomeyaml.components.display import ssd1306_spi
import esphomeyaml.config_validation as cv
from esphomeyaml.const import CONF_ADDRESS, CONF_EXTERNAL_VCC, CONF_ID, CONF_LAMBDA, CONF_MODEL, \
CONF_RESET_PIN
from esphomeyaml.cpp_generator import Pvariable, add, process_lambda
from esphomeyaml.cpp_helpers import gpio_output_pin_expression, setup_component
from esphomeyaml.cpp_types import App, void
DEPENDENCIES = ['i2c']
I2CSSD1306 = display.display_ns.class_('I2CSSD1306', ssd1306_spi.SSD1306)
PLATFORM_SCHEMA = display.FULL_DISPLAY_PLATFORM_SCHEMA.extend({
cv.GenerateID(): cv.declare_variable_id(I2CSSD1306),
vol.Required(CONF_MODEL): ssd1306_spi.SSD1306_MODEL,
vol.Optional(CONF_RESET_PIN): pins.gpio_output_pin_schema,
vol.Optional(CONF_EXTERNAL_VCC): cv.boolean,
vol.Optional(CONF_ADDRESS): cv.i2c_address,
}).extend(cv.COMPONENT_SCHEMA.schema)
def to_code(config):
ssd = Pvariable(config[CONF_ID], App.make_i2c_ssd1306())
add(ssd.set_model(ssd1306_spi.MODELS[config[CONF_MODEL]]))
if CONF_RESET_PIN in config:
for reset in gpio_output_pin_expression(config[CONF_RESET_PIN]):
yield
add(ssd.set_reset_pin(reset))
if CONF_EXTERNAL_VCC in config:
add(ssd.set_external_vcc(config[CONF_EXTERNAL_VCC]))
if CONF_ADDRESS in config:
add(ssd.set_address(config[CONF_ADDRESS]))
if CONF_LAMBDA in config:
for lambda_ in process_lambda(config[CONF_LAMBDA],
[(display.DisplayBufferRef, 'it')], return_type=void):
yield
add(ssd.set_writer(lambda_))
display.setup_display(ssd, config)
setup_component(ssd, config)
BUILD_FLAGS = '-DUSE_SSD1306'