Add support for Tuya Binary Sensors (#1089)

* Add Tuya binary sensor

* Add tuya binary sensor to test4

* Fix copy/paste

* Forgot id

esphome/components/tuya/binary_sensor/__init__.py

@@ -0,0 +1,28 @@
+from esphome.components import binary_sensor
+import esphome.config_validation as cv
+import esphome.codegen as cg
+from esphome.const import CONF_ID
+from .. import tuya_ns, CONF_TUYA_ID, Tuya
+
+DEPENDENCIES = ['tuya']
+
+CONF_SENSOR_DATAPOINT = "sensor_datapoint"
+
+TuyaBinarySensor = tuya_ns.class_('TuyaBinarySensor', binary_sensor.BinarySensor, cg.Component)
+
+CONFIG_SCHEMA = binary_sensor.BINARY_SENSOR_SCHEMA.extend({
+    cv.GenerateID(): cv.declare_id(TuyaBinarySensor),
+    cv.GenerateID(CONF_TUYA_ID): cv.use_id(Tuya),
+    cv.Required(CONF_SENSOR_DATAPOINT): cv.uint8_t,
+}).extend(cv.COMPONENT_SCHEMA)
+
+
+def to_code(config):
+    var = cg.new_Pvariable(config[CONF_ID])
+    yield cg.register_component(var, config)
+    yield binary_sensor.register_binary_sensor(var, config)
+
+    paren = yield cg.get_variable(config[CONF_TUYA_ID])
+    cg.add(var.set_tuya_parent(paren))
+
+    cg.add(var.set_sensor_id(config[CONF_SENSOR_DATAPOINT]))

esphome/components/tuya/binary_sensor/tuya_binary_sensor.cpp

@@ -0,0 +1,22 @@
+#include "esphome/core/log.h"
+#include "tuya_binary_sensor.h"
+
+namespace esphome {
+namespace tuya {
+
+static const char *TAG = "tuya.binary_sensor";
+
+void TuyaBinarySensor::setup() {
+  this->parent_->register_listener(this->sensor_id_, [this](TuyaDatapoint datapoint) {
+    this->publish_state(datapoint.value_bool);
+    ESP_LOGD(TAG, "MCU reported binary sensor is: %s", ONOFF(datapoint.value_bool));
+  });
+}
+
+void TuyaBinarySensor::dump_config() {
+  ESP_LOGCONFIG(TAG, "Tuya Binary Sensor:");
+  ESP_LOGCONFIG(TAG, "  Binary Sensor has datapoint ID %u", this->sensor_id_);
+}
+
+}  // namespace tuya
+}  // namespace esphome

esphome/components/tuya/binary_sensor/tuya_binary_sensor.h

@@ -0,0 +1,24 @@
+#pragma once
+
+#include "esphome/core/component.h"
+#include "esphome/components/tuya/tuya.h"
+#include "esphome/components/binary_sensor/binary_sensor.h"
+
+namespace esphome {
+namespace tuya {
+
+class TuyaBinarySensor : public binary_sensor::BinarySensor, public Component {
+ public:
+  void setup() override;
+  void dump_config() override;
+  void set_sensor_id(uint8_t sensor_id) { this->sensor_id_ = sensor_id; }
+
+  void set_tuya_parent(Tuya *parent) { this->parent_ = parent; }
+
+ protected:
+  Tuya *parent_;
+  uint8_t sensor_id_{0};
+};
+
+}  // namespace tuya
+}  // namespace esphome

tests/test4.yaml

@@ -77,6 +77,11 @@ sensor:
 #    type: blue
 #    name: APDS9960 Blue
 
+binary_sensor:
+  - platform: tuya
+    id: tuya_binary_sensor
+    sensor_datapoint: 1
+
 climate:
   - platform: tuya
     id: tuya_climate
@@ -87,4 +92,3 @@ switch:
   - platform: tuya
     id: tuya_switch
     switch_datapoint: 1
-