mirror of
https://github.com/esphome/esphome.git
synced 2024-12-02 19:54:14 +01:00
76 lines
2.2 KiB
C++
76 lines
2.2 KiB
C++
#include "htu21d.h"
|
|
#include "esphome/core/log.h"
|
|
#include "esphome/core/hal.h"
|
|
|
|
namespace esphome {
|
|
namespace htu21d {
|
|
|
|
static const char *const TAG = "htu21d";
|
|
|
|
static const uint8_t HTU21D_ADDRESS = 0x40;
|
|
static const uint8_t HTU21D_REGISTER_RESET = 0xFE;
|
|
static const uint8_t HTU21D_REGISTER_TEMPERATURE = 0xF3;
|
|
static const uint8_t HTU21D_REGISTER_HUMIDITY = 0xF5;
|
|
static const uint8_t HTU21D_REGISTER_STATUS = 0xE7;
|
|
|
|
void HTU21DComponent::setup() {
|
|
ESP_LOGCONFIG(TAG, "Setting up HTU21D...");
|
|
|
|
if (!this->write_bytes(HTU21D_REGISTER_RESET, nullptr, 0)) {
|
|
this->mark_failed();
|
|
return;
|
|
}
|
|
|
|
// Wait for software reset to complete
|
|
delay(15);
|
|
}
|
|
void HTU21DComponent::dump_config() {
|
|
ESP_LOGCONFIG(TAG, "HTU21D:");
|
|
LOG_I2C_DEVICE(this);
|
|
if (this->is_failed()) {
|
|
ESP_LOGE(TAG, "Communication with HTU21D failed!");
|
|
}
|
|
LOG_UPDATE_INTERVAL(this);
|
|
LOG_SENSOR(" ", "Temperature", this->temperature_);
|
|
LOG_SENSOR(" ", "Humidity", this->humidity_);
|
|
}
|
|
void HTU21DComponent::update() {
|
|
uint16_t raw_temperature;
|
|
if (this->write(&HTU21D_REGISTER_TEMPERATURE, 1) != i2c::ERROR_OK) {
|
|
this->status_set_warning();
|
|
return;
|
|
}
|
|
delay(50); // NOLINT
|
|
if (this->read(reinterpret_cast<uint8_t *>(&raw_temperature), 2) != i2c::ERROR_OK) {
|
|
this->status_set_warning();
|
|
return;
|
|
}
|
|
raw_temperature = i2c::i2ctohs(raw_temperature);
|
|
|
|
float temperature = (float(raw_temperature & 0xFFFC)) * 175.72f / 65536.0f - 46.85f;
|
|
|
|
uint16_t raw_humidity;
|
|
if (this->write(&HTU21D_REGISTER_HUMIDITY, 1) != i2c::ERROR_OK) {
|
|
this->status_set_warning();
|
|
return;
|
|
}
|
|
delay(50); // NOLINT
|
|
if (this->read(reinterpret_cast<uint8_t *>(&raw_humidity), 2) != i2c::ERROR_OK) {
|
|
this->status_set_warning();
|
|
return;
|
|
}
|
|
raw_humidity = i2c::i2ctohs(raw_humidity);
|
|
|
|
float humidity = (float(raw_humidity & 0xFFFC)) * 125.0f / 65536.0f - 6.0f;
|
|
ESP_LOGD(TAG, "Got Temperature=%.1f°C Humidity=%.1f%%", temperature, humidity);
|
|
|
|
if (this->temperature_ != nullptr)
|
|
this->temperature_->publish_state(temperature);
|
|
if (this->humidity_ != nullptr)
|
|
this->humidity_->publish_state(humidity);
|
|
this->status_clear_warning();
|
|
}
|
|
float HTU21DComponent::get_setup_priority() const { return setup_priority::DATA; }
|
|
|
|
} // namespace htu21d
|
|
} // namespace esphome
|