Support for the AirThings Wave Plus (#1656)

Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>

esphome/components/airthings_wave_plus/airthings_wave_plus.h

@@ -0,0 +1,79 @@
+#pragma once
+
+#include "esphome/core/component.h"
+#include "esphome/components/ble_client/ble_client.h"
+#include "esphome/components/esp32_ble_tracker/esp32_ble_tracker.h"
+#include "esphome/components/sensor/sensor.h"
+#include "esphome/core/log.h"
+#include <algorithm>
+#include <iterator>
+
+#ifdef ARDUINO_ARCH_ESP32
+#include <esp_gattc_api.h>
+#include <BLEDevice.h>
+
+using namespace esphome::ble_client;
+
+namespace esphome {
+namespace airthings_wave_plus {
+
+static const char *TAG = "airthings_wave_plus";
+
+class AirthingsWavePlus : public PollingComponent, public BLEClientNode {
+ public:
+  AirthingsWavePlus();
+
+  void setup() override;
+  void dump_config() override;
+  void update() override;
+  void loop() override;
+
+  void gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if,
+                           esp_ble_gattc_cb_param_t *param) override;
+
+  void set_temperature(sensor::Sensor *temperature) { temperature_sensor_ = temperature; }
+  void set_radon(sensor::Sensor *radon) { radon_sensor_ = radon; }
+  void set_radon_long_term(sensor::Sensor *radon_long_term) { radon_long_term_sensor_ = radon_long_term; }
+  void set_humidity(sensor::Sensor *humidity) { humidity_sensor_ = humidity; }
+  void set_pressure(sensor::Sensor *pressure) { pressure_sensor_ = pressure; }
+  void set_co2(sensor::Sensor *co2) { co2_sensor_ = co2; }
+  void set_tvoc(sensor::Sensor *tvoc) { tvoc_sensor_ = tvoc; }
+
+ protected:
+  bool is_valid_radon_value_(short radon);
+  bool is_valid_voc_value_(short voc);
+  bool is_valid_co2_value_(short co2);
+
+  void read_sensors_(uint8_t *value, uint16_t value_len);
+  void request_read_values_();
+
+  sensor::Sensor *temperature_sensor_{nullptr};
+  sensor::Sensor *radon_sensor_{nullptr};
+  sensor::Sensor *radon_long_term_sensor_{nullptr};
+  sensor::Sensor *humidity_sensor_{nullptr};
+  sensor::Sensor *pressure_sensor_{nullptr};
+  sensor::Sensor *co2_sensor_{nullptr};
+  sensor::Sensor *tvoc_sensor_{nullptr};
+
+  uint16_t handle;
+  espbt::ESPBTUUID service_uuid;
+  espbt::ESPBTUUID sensors_data_characteristic_uuid;
+
+  struct WavePlusReadings {
+    uint8_t version;
+    uint8_t humidity;
+    uint8_t ambientLight;
+    uint8_t unused01;
+    uint16_t radon;
+    uint16_t radon_lt;
+    uint16_t temperature;
+    uint16_t pressure;
+    uint16_t co2;
+    uint16_t voc;
+  };
+};
+
+}  // namespace airthings_wave_plus
+}  // namespace esphome
+
+#endif  // ARDUINO_ARCH_ESP32