mirror of https://github.com/esphome/esphome.git
73 lines
2.8 KiB
Python
73 lines
2.8 KiB
Python
import voluptuous as vol
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from esphome import pins
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from esphome.components import sensor
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import esphome.config_validation as cv
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from esphome.const import CONF_ID, CONF_NAME, CONF_RESOLUTION, CONF_MIN_VALUE, CONF_MAX_VALUE
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from esphome.cpp_generator import Pvariable, add
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from esphome.cpp_helpers import gpio_input_pin_expression, setup_component
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from esphome.cpp_types import App, Component
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RotaryEncoderResolution = sensor.sensor_ns.enum('RotaryEncoderResolution')
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RESOLUTIONS = {
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1: RotaryEncoderResolution.ROTARY_ENCODER_1_PULSE_PER_CYCLE,
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2: RotaryEncoderResolution.ROTARY_ENCODER_2_PULSES_PER_CYCLE,
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4: RotaryEncoderResolution.ROTARY_ENCODER_4_PULSES_PER_CYCLE,
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}
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CONF_PIN_A = 'pin_a'
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CONF_PIN_B = 'pin_b'
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CONF_PIN_RESET = 'pin_reset'
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RotaryEncoderSensor = sensor.sensor_ns.class_('RotaryEncoderSensor', sensor.Sensor, Component)
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def validate_min_max_value(config):
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if CONF_MIN_VALUE in config and CONF_MAX_VALUE in config:
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min_val = config[CONF_MIN_VALUE]
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max_val = config[CONF_MAX_VALUE]
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if min_val >= max_val:
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raise vol.Invalid("Max value {} must be smaller than min value {}"
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"".format(max_val, min_val))
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return config
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PLATFORM_SCHEMA = cv.nameable(sensor.SENSOR_PLATFORM_SCHEMA.extend({
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cv.GenerateID(): cv.declare_variable_id(RotaryEncoderSensor),
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vol.Required(CONF_PIN_A): vol.All(pins.internal_gpio_input_pin_schema,
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pins.validate_has_interrupt),
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vol.Required(CONF_PIN_B): vol.All(pins.internal_gpio_input_pin_schema,
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pins.validate_has_interrupt),
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vol.Optional(CONF_PIN_RESET): pins.internal_gpio_input_pin_schema,
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vol.Optional(CONF_RESOLUTION): cv.one_of(*RESOLUTIONS, int=True),
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vol.Optional(CONF_MIN_VALUE): cv.int_,
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vol.Optional(CONF_MAX_VALUE): cv.int_,
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}).extend(cv.COMPONENT_SCHEMA.schema), validate_min_max_value)
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def to_code(config):
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for pin_a in gpio_input_pin_expression(config[CONF_PIN_A]):
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yield
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for pin_b in gpio_input_pin_expression(config[CONF_PIN_B]):
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yield
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rhs = App.make_rotary_encoder_sensor(config[CONF_NAME], pin_a, pin_b)
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encoder = Pvariable(config[CONF_ID], rhs)
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if CONF_PIN_RESET in config:
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for pin_i in gpio_input_pin_expression(config[CONF_PIN_RESET]):
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yield
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add(encoder.set_reset_pin(pin_i))
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if CONF_RESOLUTION in config:
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resolution = RESOLUTIONS[config[CONF_RESOLUTION]]
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add(encoder.set_resolution(resolution))
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if CONF_MIN_VALUE in config:
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add(encoder.set_min_value(config[CONF_MIN_VALUE]))
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if CONF_MAX_VALUE in config:
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add(encoder.set_min_value(config[CONF_MAX_VALUE]))
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sensor.setup_sensor(encoder, config)
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setup_component(encoder, config)
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BUILD_FLAGS = '-DUSE_ROTARY_ENCODER_SENSOR'
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