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40 lines
1.8 KiB
Python
40 lines
1.8 KiB
Python
import esphome.codegen as cg
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import esphome.config_validation as cv
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from esphome import pins
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from esphome.components import sensor
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from esphome.const import CONF_ECHO_PIN, CONF_ID, CONF_TRIGGER_PIN, \
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CONF_TIMEOUT, UNIT_METER, ICON_ARROW_EXPAND_VERTICAL
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CONF_PULSE_TIME = 'pulse_time'
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ultrasonic_ns = cg.esphome_ns.namespace('ultrasonic')
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UltrasonicSensorComponent = ultrasonic_ns.class_('UltrasonicSensorComponent',
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sensor.Sensor, cg.PollingComponent)
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CONFIG_SCHEMA = sensor.sensor_schema(UNIT_METER, ICON_ARROW_EXPAND_VERTICAL, 2).extend({
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cv.GenerateID(): cv.declare_id(UltrasonicSensorComponent),
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cv.Required(CONF_TRIGGER_PIN): pins.gpio_output_pin_schema,
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cv.Required(CONF_ECHO_PIN): pins.internal_gpio_input_pin_schema,
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cv.Optional(CONF_TIMEOUT, default='2m'): cv.distance,
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cv.Optional(CONF_PULSE_TIME, default='10us'): cv.positive_time_period_microseconds,
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cv.Optional('timeout_meter'): cv.invalid("The timeout_meter option has been renamed "
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"to 'timeout' in 1.12."),
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cv.Optional('timeout_time'): cv.invalid("The timeout_time option has been removed. Please "
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"use 'timeout' in 1.12."),
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}).extend(cv.polling_component_schema('60s'))
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def to_code(config):
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var = cg.new_Pvariable(config[CONF_ID])
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yield cg.register_component(var, config)
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yield sensor.register_sensor(var, config)
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trigger = yield cg.gpio_pin_expression(config[CONF_TRIGGER_PIN])
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cg.add(var.set_trigger_pin(trigger))
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echo = yield cg.gpio_pin_expression(config[CONF_ECHO_PIN])
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cg.add(var.set_echo_pin(echo))
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cg.add(var.set_timeout_us(config[CONF_TIMEOUT] / (0.000343 / 2)))
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cg.add(var.set_pulse_time_us(config[CONF_PULSE_TIME]))
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