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Adds light sensor support for b-parasites (#2391)

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rbaron
2021-09-25 13:16:27 +02:00
committed by GitHub
parent 5342edf04a
commit 95a6715b2b
4 changed files with 34 additions and 0 deletions
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esphome/components/b_parasite/b_parasite.cpp
+20
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@@ -14,6 +14,7 @@ void BParasite::dump_config() {
LOG_SENSOR(" ", "Temperature", this->temperature_);
LOG_SENSOR(" ", "Humidity", this->humidity_);
LOG_SENSOR(" ", "Soil Moisture", this->soil_moisture_);
LOG_SENSOR(" ", "Illuminance", this->illuminance_);
}
bool BParasite::parse_device(const esp32_ble_tracker::ESPBTDevice &device) {
@@ -36,6 +37,15 @@ bool BParasite::parse_device(const esp32_ble_tracker::ESPBTDevice &device) {
const auto &data = service_data.data;
const uint8_t protocol_version = data[0] >> 4;
if (protocol_version != 1) {
ESP_LOGE(TAG, "Unsupported protocol version: %u", protocol_version);
return false;
}
// Some b-parasite versions have an (optional) illuminance sensor.
bool has_illuminance = data[0] & 0x1;
// Counter for deduplicating messages.
uint8_t counter = data[1] & 0x0f;
if (last_processed_counter_ == counter) {
@@ -59,6 +69,9 @@ bool BParasite::parse_device(const esp32_ble_tracker::ESPBTDevice &device) {
uint16_t soil_moisture = data[8] << 8 | data[9];
float moisture_percent = (100.0f * soil_moisture) / (1 << 16);
// Ambient light in lux.
float illuminance = has_illuminance ? data[16] << 8 | data[17] : 0.0f;
if (battery_voltage_ != nullptr) {
battery_voltage_->publish_state(battery_voltage);
}
@@ -71,6 +84,13 @@ bool BParasite::parse_device(const esp32_ble_tracker::ESPBTDevice &device) {
if (soil_moisture_ != nullptr) {
soil_moisture_->publish_state(moisture_percent);
}
if (illuminance_ != nullptr) {
if (has_illuminance) {
illuminance_->publish_state(illuminance);
} else {
ESP_LOGE(TAG, "No lux information is present in the BLE packet");
}
}
last_processed_counter_ = counter;
return true;