esphome/esphomeyaml/components/sensor/adc.py

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import voluptuous as vol
import esphomeyaml.config_validation as cv
from esphomeyaml import pins
from esphomeyaml.components import sensor
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from esphomeyaml.const import CONF_ATTENUATION, CONF_MAKE_ID, CONF_NAME, CONF_PIN, \
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CONF_UPDATE_INTERVAL
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from esphomeyaml.helpers import App, Application, add, global_ns, variable
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ATTENUATION_MODES = {
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'0db': global_ns.ADC_0db,
'2.5db': global_ns.ADC_2_5db,
'6db': global_ns.ADC_6db,
'11db': global_ns.ADC_11db,
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}
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def validate_adc_pin(value):
vcc = str(value).upper()
if vcc == 'VCC':
return cv.only_on_esp8266(vcc)
return pins.analog_pin(value)
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MakeADCSensor = Application.MakeADCSensor
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PLATFORM_SCHEMA = sensor.PLATFORM_SCHEMA.extend({
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cv.GenerateID(CONF_MAKE_ID): cv.declare_variable_id(MakeADCSensor),
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vol.Required(CONF_PIN): validate_adc_pin,
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vol.Optional(CONF_ATTENUATION): vol.All(cv.only_on_esp32, cv.one_of(*ATTENUATION_MODES)),
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vol.Optional(CONF_UPDATE_INTERVAL): cv.positive_time_period_milliseconds,
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}).extend(sensor.SENSOR_SCHEMA.schema)
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def to_code(config):
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pin = config[CONF_PIN]
if pin == 'VCC':
pin = 0
rhs = App.make_adc_sensor(config[CONF_NAME], pin,
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config.get(CONF_UPDATE_INTERVAL))
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make = variable(config[CONF_MAKE_ID], rhs)
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adc = make.Padc
if CONF_ATTENUATION in config:
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add(adc.set_attenuation(ATTENUATION_MODES[config[CONF_ATTENUATION]]))
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sensor.setup_sensor(make.Padc, make.Pmqtt, config)
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BUILD_FLAGS = '-DUSE_ADC_SENSOR'
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def required_build_flags(config):
if config[CONF_PIN] == 'VCC':
return '-DUSE_ADC_SENSOR_VCC'
return None