mirror of
https://github.com/esphome/esphome.git
synced 2024-12-02 19:54:14 +01:00
dea6675c21
* Add HM3301 laser dust detection sensor * Fixed after lint * Fixed after lint * added status clear warning
82 lines
2.2 KiB
C++
82 lines
2.2 KiB
C++
#include "hm3301.h"
|
|
#include "esphome/core/log.h"
|
|
|
|
namespace esphome {
|
|
namespace hm3301 {
|
|
|
|
static const char *TAG = "hm3301.sensor";
|
|
|
|
static const uint8_t PM_1_0_VALUE_INDEX = 5;
|
|
static const uint8_t PM_2_5_VALUE_INDEX = 6;
|
|
static const uint8_t PM_10_0_VALUE_INDEX = 7;
|
|
|
|
void HM3301Component::setup() {
|
|
ESP_LOGCONFIG(TAG, "Setting up HM3301...");
|
|
hm3301_ = new HM330X();
|
|
error_code_ = hm3301_->init();
|
|
if (error_code_ != NO_ERROR) {
|
|
this->mark_failed();
|
|
return;
|
|
}
|
|
}
|
|
|
|
void HM3301Component::dump_config() {
|
|
ESP_LOGCONFIG(TAG, "HM3301:");
|
|
LOG_I2C_DEVICE(this);
|
|
if (error_code_ == ERROR_COMM) {
|
|
ESP_LOGE(TAG, "Communication with HM3301 failed!");
|
|
}
|
|
|
|
LOG_SENSOR(" ", "PM1.0", this->pm_1_0_sensor_);
|
|
LOG_SENSOR(" ", "PM2.5", this->pm_2_5_sensor_);
|
|
LOG_SENSOR(" ", "PM10.0", this->pm_10_0_sensor_);
|
|
}
|
|
|
|
float HM3301Component::get_setup_priority() const { return setup_priority::DATA; }
|
|
|
|
void HM3301Component::update() {
|
|
if (!this->read_sensor_value_(data_buffer_)) {
|
|
ESP_LOGW(TAG, "Read result failed");
|
|
this->status_set_warning();
|
|
return;
|
|
}
|
|
|
|
if (!this->validate_checksum_(data_buffer_)) {
|
|
ESP_LOGW(TAG, "Checksum validation failed");
|
|
this->status_set_warning();
|
|
return;
|
|
}
|
|
|
|
if (this->pm_1_0_sensor_ != nullptr) {
|
|
uint16_t value = get_sensor_value_(data_buffer_, PM_1_0_VALUE_INDEX);
|
|
this->pm_1_0_sensor_->publish_state(value);
|
|
}
|
|
if (this->pm_2_5_sensor_ != nullptr) {
|
|
uint16_t value = get_sensor_value_(data_buffer_, PM_2_5_VALUE_INDEX);
|
|
this->pm_2_5_sensor_->publish_state(value);
|
|
}
|
|
if (this->pm_10_0_sensor_ != nullptr) {
|
|
uint16_t value = get_sensor_value_(data_buffer_, PM_10_0_VALUE_INDEX);
|
|
this->pm_10_0_sensor_->publish_state(value);
|
|
}
|
|
|
|
this->status_clear_warning();
|
|
}
|
|
|
|
bool HM3301Component::read_sensor_value_(uint8_t *data) { return !hm3301_->read_sensor_value(data, 29); }
|
|
|
|
bool HM3301Component::validate_checksum_(const uint8_t *data) {
|
|
uint8_t sum = 0;
|
|
for (int i = 0; i < 28; i++) {
|
|
sum += data[i];
|
|
}
|
|
|
|
return sum == data[28];
|
|
}
|
|
|
|
uint16_t HM3301Component::get_sensor_value_(const uint8_t *data, uint8_t i) {
|
|
return (uint16_t) data[i * 2] << 8 | data[i * 2 + 1];
|
|
}
|
|
|
|
} // namespace hm3301
|
|
} // namespace esphome
|