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91 lines
2.9 KiB
C++
91 lines
2.9 KiB
C++
#pragma once
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// All information related to reading battery levels came from the sensors.airthings_wave
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// project by Sverre Hamre (https://github.com/sverrham/sensor.airthings_wave)
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#ifdef USE_ESP32
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#include <esp_gattc_api.h>
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#include <algorithm>
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#include <iterator>
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#include "esphome/components/ble_client/ble_client.h"
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#include "esphome/components/esp32_ble_tracker/esp32_ble_tracker.h"
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#include "esphome/components/sensor/sensor.h"
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#include "esphome/core/component.h"
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#include "esphome/core/log.h"
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namespace esphome {
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namespace airthings_wave_base {
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namespace espbt = esphome::esp32_ble_tracker;
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static const uint8_t ACCESS_CONTROL_POINT_COMMAND = 0x6d;
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static const auto CLIENT_CHARACTERISTIC_CONFIGURATION_DESCRIPTOR_UUID = espbt::ESPBTUUID::from_uint16(0x2902);
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class AirthingsWaveBase : public PollingComponent, public ble_client::BLEClientNode {
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public:
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AirthingsWaveBase() = default;
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void update() override;
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void gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if,
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esp_ble_gattc_cb_param_t *param) override;
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void set_temperature(sensor::Sensor *temperature) { temperature_sensor_ = temperature; }
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void set_humidity(sensor::Sensor *humidity) { humidity_sensor_ = humidity; }
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void set_pressure(sensor::Sensor *pressure) { pressure_sensor_ = pressure; }
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void set_tvoc(sensor::Sensor *tvoc) { tvoc_sensor_ = tvoc; }
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void set_battery_voltage(sensor::Sensor *voltage) {
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battery_voltage_ = voltage;
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this->read_battery_next_update_ = true;
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}
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void set_battery_update_interval(uint32_t interval) { battery_update_interval_ = interval; }
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protected:
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bool is_valid_voc_value_(uint16_t voc);
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bool request_read_values_();
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virtual void read_sensors(uint8_t *raw_value, uint16_t value_len) = 0;
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sensor::Sensor *temperature_sensor_{nullptr};
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sensor::Sensor *humidity_sensor_{nullptr};
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sensor::Sensor *pressure_sensor_{nullptr};
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sensor::Sensor *tvoc_sensor_{nullptr};
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sensor::Sensor *battery_voltage_{nullptr};
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uint16_t handle_;
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espbt::ESPBTUUID service_uuid_;
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espbt::ESPBTUUID sensors_data_characteristic_uuid_;
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uint16_t acp_handle_{0};
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uint16_t cccd_handle_{0};
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espbt::ESPBTUUID access_control_point_characteristic_uuid_;
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uint8_t responses_pending_{0};
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void response_pending_();
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void response_received_();
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void set_response_timeout_();
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// default to *not* reading battery voltage from the device; the
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// set_* function for the battery sensor will set this to 'true'
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bool read_battery_next_update_{false};
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bool request_battery_();
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void read_battery_(uint8_t *raw_value, uint16_t value_len);
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uint32_t battery_update_interval_{};
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struct AccessControlPointResponse {
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uint32_t unused1;
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uint8_t unused2;
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uint8_t illuminance;
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uint8_t unused3[10];
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uint16_t unused4[4];
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uint16_t battery;
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uint16_t unused5;
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};
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};
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} // namespace airthings_wave_base
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} // namespace esphome
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#endif // USE_ESP32
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