esphome/esphomeyaml/components/sensor/hx711.py
2018-08-24 22:44:15 +02:00

46 lines
1.5 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
MakeHX711Sensor = Application.MakeHX711Sensor
CONF_DOUT_PIN = 'dout_pin'
GAINS = {
128: sensor.sensor_ns.HX711_GAIN_128,
32: sensor.sensor_ns.HX711_GAIN_32,
64: sensor.sensor_ns.HX711_GAIN_64,
}
PLATFORM_SCHEMA = cv.nameable(sensor.SENSOR_PLATFORM_SCHEMA.extend({
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): vol.All(cv.int_, cv.one_of(*GAINS)),
vol.Optional(CONF_UPDATE_INTERVAL): cv.update_interval,
}))
def to_code(config):
dout_pin = None
for dout_pin in gpio_input_pin_expression(config[CONF_DOUT_PIN]):
yield
sck_pin = None
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)
if CONF_GAIN in config:
add(make.Phx711.set_gain(GAINS[CONF_GAIN]))
sensor.setup_sensor(make.Phx711, make.Pmqtt, config)
BUILD_FLAGS = '-DUSE_HX711'