Rotary Encoder

esphomeyaml/components/sensor/rotary_encoder.py

@@ -0,0 +1,44 @@
+import voluptuous as vol
+
+import esphomeyaml.config_validation as cv
+from esphomeyaml import pins
+from esphomeyaml.components import sensor
+from esphomeyaml.const import CONF_ID, CONF_NAME, CONF_RESOLUTION
+from esphomeyaml.helpers import App, RawExpression, add, gpio_input_pin_expression, variable
+
+RESOLUTIONS = {
+    '1': 'sensor::ROTARY_ENCODER_1_PULSE_PER_CYCLE',
+    '2': 'sensor::ROTARY_ENCODER_2_PULSES_PER_CYCLE',
+    '4': 'sensor::ROTARY_ENCODER_4_PULSES_PER_CYCLE',
+}
+
+CONF_PIN_A = 'pin_a'
+CONF_PIN_B = 'pin_b'
+CONF_PIN_RESET = 'pin_reset'
+
+PLATFORM_SCHEMA = sensor.PLATFORM_SCHEMA.extend({
+    cv.GenerateID('rotary_encoder'): cv.register_variable_id,
+    vol.Required(CONF_PIN_A): pins.GPIO_INTERNAL_INPUT_PIN_SCHEMA,
+    vol.Required(CONF_PIN_B): pins.GPIO_INTERNAL_INPUT_PIN_SCHEMA,
+    vol.Optional(CONF_PIN_RESET): pins.GPIO_INTERNAL_INPUT_PIN_SCHEMA,
+    vol.Optional(CONF_RESOLUTION): vol.All(cv.string, vol.Any(*RESOLUTIONS)),
+}).extend(sensor.MQTT_SENSOR_SCHEMA.schema)
+
+
+def to_code(config):
+    pin_a = gpio_input_pin_expression(config[CONF_PIN_A])
+    pin_b = gpio_input_pin_expression(config[CONF_PIN_B])
+    rhs = App.make_rotary_encoder_sensor(config[CONF_NAME], pin_a, pin_b)
+    make = variable('Application::MakeRotaryEncoderSensor', config[CONF_ID], rhs)
+    encoder = make.Protary_encoder
+    if CONF_PIN_RESET in config:
+        pin_i = gpio_input_pin_expression(config[CONF_PIN_RESET])
+        add(encoder.set_reset_pin(pin_i))
+    if CONF_RESOLUTION in config:
+        resolution = RESOLUTIONS[config[CONF_RESOLUTION]]
+        add(encoder.set_resolution(RawExpression(resolution)))
+    sensor.setup_sensor(encoder, config)
+    sensor.setup_mqtt_sensor_component(make.Pmqtt, config)
+
+
+BUILD_FLAGS = '-DUSE_ROTARY_ENCODER_SENSOR'