esphome/esphomeyaml/components/sensor/hx711.py
2018-11-23 13:51:22 +01:00

55 lines
1.8 KiB
Python

import voluptuous as vol
import esphomeyaml.config_validation as cv
from esphomeyaml import pins
from esphomeyaml.components import sensor
from esphomeyaml.const import CONF_GAIN, CONF_MAKE_ID, CONF_NAME, CONF_UPDATE_INTERVAL, CONF_CLK_PIN
from esphomeyaml.helpers import App, Application, add, gpio_input_pin_expression, variable, \
setup_component
MakeHX711Sensor = Application.struct('MakeHX711Sensor')
HX711Sensor = sensor.sensor_ns.class_('HX711Sensor', sensor.PollingSensorComponent)
CONF_DOUT_PIN = 'dout_pin'
HX711Gain = sensor.sensor_ns.enum('HX711Gain')
GAINS = {
128: HX711Gain.HX711_GAIN_128,
32: HX711Gain.HX711_GAIN_32,
64: HX711Gain.HX711_GAIN_64,
}
PLATFORM_SCHEMA = cv.nameable(sensor.SENSOR_PLATFORM_SCHEMA.extend({
cv.GenerateID(): cv.declare_variable_id(HX711Sensor),
cv.GenerateID(CONF_MAKE_ID): cv.declare_variable_id(MakeHX711Sensor),
vol.Required(CONF_DOUT_PIN): pins.gpio_input_pin_schema,
vol.Required(CONF_CLK_PIN): pins.gpio_output_pin_schema,
vol.Optional(CONF_GAIN): cv.one_of(*GAINS, int=True),
vol.Optional(CONF_UPDATE_INTERVAL): cv.update_interval,
}).extend(cv.COMPONENT_SCHEMA.schema))
def to_code(config):
for dout_pin in gpio_input_pin_expression(config[CONF_DOUT_PIN]):
yield
for sck_pin in gpio_input_pin_expression(config[CONF_CLK_PIN]):
yield
rhs = App.make_hx711_sensor(config[CONF_NAME], dout_pin, sck_pin,
config.get(CONF_UPDATE_INTERVAL))
make = variable(config[CONF_MAKE_ID], rhs)
hx711 = make.Phx711
if CONF_GAIN in config:
add(hx711.set_gain(GAINS[config[CONF_GAIN]]))
sensor.setup_sensor(hx711, make.Pmqtt, config)
setup_component(hx711, config)
BUILD_FLAGS = '-DUSE_HX711'
def to_hass_config(data, config):
return sensor.core_to_hass_config(data, config)