Upstream
/
esphome
mirror of https://github.com/esphome/esphome.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

Improved sensor readings in htu21d component. (#5839)

This commit is contained in:
matzman666 2023-12-22 07:58:17 +01:00 committed by GitHub
parent bd6fa29f77
commit 676ae6b26e
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 38 additions and 29 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

67
esphome/components/htu21d/htu21d.cpp
View File

@ -39,45 +39,54 @@ void HTU21DComponent::dump_config() {
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;
// According to the datasheet sht21 temperature readings can take up to 85ms
this->set_timeout(85, [this]() {
uint16_t raw_temperature;
if (this->read(reinterpret_cast<uint8_t *>(&raw_temperature), 2) != i2c::ERROR_OK) {
this->status_set_warning();
return;
}
raw_temperature = i2c::i2ctohs(raw_temperature);
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 temperature = (float(raw_temperature & 0xFFFC)) * 175.72f / 65536.0f - 46.85f;
float humidity = (float(raw_humidity & 0xFFFC)) * 125.0f / 65536.0f - 6.0f;
ESP_LOGD(TAG, "Got Temperature=%.1f°C", temperature);
int8_t heater_level = this->get_heater_level();
if (this->temperature_ != nullptr)
this->temperature_->publish_state(temperature);
this->status_clear_warning();
ESP_LOGD(TAG, "Got Temperature=%.1f°C Humidity=%.1f%% Heater Level=%d", temperature, humidity, heater_level);
if (this->write(&HTU21D_REGISTER_HUMIDITY, 1) != i2c::ERROR_OK) {
this->status_set_warning();
return;
}
if (this->temperature_ != nullptr)
this->temperature_->publish_state(temperature);
if (this->humidity_ != nullptr)
this->humidity_->publish_state(humidity);
if (this->heater_ != nullptr)
this->heater_->publish_state(heater_level);
this->status_clear_warning();
this->set_timeout(50, [this]() {
uint16_t raw_humidity;
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;
int8_t heater_level = this->get_heater_level();
ESP_LOGD(TAG, "Got Humidity=%.1f%% Heater Level=%d", humidity, heater_level);
if (this->humidity_ != nullptr)
this->humidity_->publish_state(humidity);
if (this->heater_ != nullptr)
this->heater_->publish_state(heater_level);
this->status_clear_warning();
});
});
}
bool HTU21DComponent::is_heater_enabled() {