esphome/esphomeyaml/components/sensor/ads1115.py
2018-06-02 22:22:20 +02:00

69 lines
2.2 KiB
Python

import voluptuous as vol
import esphomeyaml.config_validation as cv
from esphomeyaml.components import sensor
from esphomeyaml.components.ads1115 import ADS1115Component
from esphomeyaml.const import CONF_ADS1115_ID, CONF_GAIN, CONF_MULTIPLEXER, CONF_NAME, \
CONF_UPDATE_INTERVAL
from esphomeyaml.helpers import get_variable
DEPENDENCIES = ['ads1115']
MUX = {
'A0_A1': sensor.sensor_ns.ADS1115_MULTIPLEXER_P0_N1,
'A0_A3': sensor.sensor_ns.ADS1115_MULTIPLEXER_P0_N3,
'A1_A3': sensor.sensor_ns.ADS1115_MULTIPLEXER_P1_N3,
'A2_A3': sensor.sensor_ns.ADS1115_MULTIPLEXER_P2_N3,
'A0_GND': sensor.sensor_ns.ADS1115_MULTIPLEXER_P0_NG,
'A1_GND': sensor.sensor_ns.ADS1115_MULTIPLEXER_P1_NG,
'A2_GND': sensor.sensor_ns.ADS1115_MULTIPLEXER_P2_NG,
'A3_GND': sensor.sensor_ns.ADS1115_MULTIPLEXER_P3_NG,
}
GAIN = {
'6.144': sensor.sensor_ns.ADS1115_GAIN_6P144,
'4.096': sensor.sensor_ns.ADS1115_GAIN_6P096,
'2.048': sensor.sensor_ns.ADS1115_GAIN_2P048,
'1.024': sensor.sensor_ns.ADS1115_GAIN_1P024,
'0.512': sensor.sensor_ns.ADS1115_GAIN_0P512,
'0.256': sensor.sensor_ns.ADS1115_GAIN_0P256,
}
def validate_gain(value):
if isinstance(value, float):
value = u'{:0.03f}'.format(value)
elif not isinstance(value, (str, unicode)):
raise vol.Invalid('invalid gain "{}"'.format(value))
return cv.one_of(*GAIN)(value)
def validate_mux(value):
value = cv.string(value).upper()
value = value.replace(' ', '_')
return cv.one_of(*MUX)(value)
PLATFORM_SCHEMA = sensor.PLATFORM_SCHEMA.extend({
vol.Required(CONF_MULTIPLEXER): validate_mux,
vol.Required(CONF_GAIN): validate_gain,
cv.GenerateID(CONF_ADS1115_ID): cv.use_variable_id(ADS1115Component),
vol.Optional(CONF_UPDATE_INTERVAL): cv.positive_time_period_milliseconds,
}).extend(sensor.SENSOR_SCHEMA.schema)
def to_code(config):
hub = None
for hub in get_variable(config[CONF_ADS1115_ID]):
yield
mux = MUX[config[CONF_MULTIPLEXER]]
gain = GAIN[config[CONF_GAIN]]
rhs = hub.get_sensor(config[CONF_NAME], mux, gain, config.get(CONF_UPDATE_INTERVAL))
for _ in sensor.register_sensor(rhs, config):
yield
BUILD_FLAGS = '-DUSE_ADS1115_SENSOR'