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Code Issues Releases Wiki Activity

Add support for Airthing Wave Mini (#2440)

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NMC
2021-10-04 18:56:34 -04:00
committed by GitHub
parent 8be4086224
commit 877367677b
6 changed files with 289 additions and 0 deletions
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120
esphome/components/airthings_wave_mini/airthings_wave_mini.cpp Normal file
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#include "airthings_wave_mini.h"
#ifdef USE_ESP32_FRAMEWORK_ARDUINO
namespace esphome {
namespace airthings_wave_mini {
static const char *const TAG = "airthings_wave_mini";
void AirthingsWaveMini::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if,
esp_ble_gattc_cb_param_t *param) {
switch (event) {
case ESP_GATTC_OPEN_EVT: {
if (param->open.status == ESP_GATT_OK) {
ESP_LOGI(TAG, "Connected successfully!");
}
break;
}
case ESP_GATTC_DISCONNECT_EVT: {
ESP_LOGW(TAG, "Disconnected!");
break;
}
case ESP_GATTC_SEARCH_CMPL_EVT: {
this->handle_ = 0;
auto chr = this->parent()->get_characteristic(service_uuid_, sensors_data_characteristic_uuid_);
if (chr == nullptr) {
ESP_LOGW(TAG, "No sensor characteristic found at service %s char %s", service_uuid_.to_string().c_str(),
sensors_data_characteristic_uuid_.to_string().c_str());
break;
}
this->handle_ = chr->handle;
this->node_state = esp32_ble_tracker::ClientState::ESTABLISHED;
request_read_values_();
break;
}
case ESP_GATTC_READ_CHAR_EVT: {
if (param->read.conn_id != this->parent()->conn_id)
break;
if (param->read.status != ESP_GATT_OK) {
ESP_LOGW(TAG, "Error reading char at handle %d, status=%d", param->read.handle, param->read.status);
break;
}
if (param->read.handle == this->handle_) {
read_sensors_(param->read.value, param->read.value_len);
}
break;
}
default:
break;
}
}
void AirthingsWaveMini::read_sensors_(uint8_t *raw_value, uint16_t value_len) {
auto value = (WaveMiniReadings *) raw_value;
if (sizeof(WaveMiniReadings) <= value_len) {
this->humidity_sensor_->publish_state(value->humidity / 100.0f);
this->pressure_sensor_->publish_state(value->pressure / 50.0f);
this->temperature_sensor_->publish_state(value->temperature / 100.0f - 273.15f);
if (is_valid_voc_value_(value->voc)) {
this->tvoc_sensor_->publish_state(value->voc);
}
// This instance must not stay connected
// so other clients can connect to it (e.g. the
// mobile app).
parent()->set_enabled(false);
}
}
bool AirthingsWaveMini::is_valid_voc_value_(uint16_t voc) { return 0 <= voc && voc <= 16383; }
void AirthingsWaveMini::loop() {}
void AirthingsWaveMini::update() {
if (this->node_state != esp32_ble_tracker::ClientState::ESTABLISHED) {
if (!parent()->enabled) {
ESP_LOGW(TAG, "Reconnecting to device");
parent()->set_enabled(true);
parent()->connect();
} else {
ESP_LOGW(TAG, "Connection in progress");
}
}
}
void AirthingsWaveMini::request_read_values_() {
auto status =
esp_ble_gattc_read_char(this->parent()->gattc_if, this->parent()->conn_id, this->handle_, ESP_GATT_AUTH_REQ_NONE);
if (status) {
ESP_LOGW(TAG, "Error sending read request for sensor, status=%d", status);
}
}
void AirthingsWaveMini::dump_config() {
LOG_SENSOR(" ", "Humidity", this->humidity_sensor_);
LOG_SENSOR(" ", "Temperature", this->temperature_sensor_);
LOG_SENSOR(" ", "Pressure", this->pressure_sensor_);
LOG_SENSOR(" ", "TVOC", this->tvoc_sensor_);
}
AirthingsWaveMini::AirthingsWaveMini() : PollingComponent(10000) {
auto service_bt = *BLEUUID::fromString(std::string("b42e3882-ade7-11e4-89d3-123b93f75cba")).getNative();
auto characteristic_bt = *BLEUUID::fromString(std::string("b42e3b98-ade7-11e4-89d3-123b93f75cba")).getNative();
service_uuid_ = esp32_ble_tracker::ESPBTUUID::from_uuid(service_bt);
sensors_data_characteristic_uuid_ = esp32_ble_tracker::ESPBTUUID::from_uuid(characteristic_bt);
}
void AirthingsWaveMini::setup() {}
} // namespace airthings_wave_mini
} // namespace esphome
#endif // USE_ESP32_FRAMEWORK_ARDUINO