ESPHome  2024.4.0
hyt271.cpp
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1 #include "hyt271.h"
2 #include "esphome/core/log.h"
3 #include "esphome/core/hal.h"
4 
5 namespace esphome {
6 namespace hyt271 {
7 
8 static const char *const TAG = "hyt271";
9 
10 static const uint8_t HYT271_ADDRESS = 0x28;
11 
13  ESP_LOGCONFIG(TAG, "HYT271:");
14  LOG_I2C_DEVICE(this);
15  LOG_UPDATE_INTERVAL(this);
16  LOG_SENSOR(" ", "Temperature", this->temperature_);
17  LOG_SENSOR(" ", "Humidity", this->humidity_);
18 }
20  uint8_t raw_data[4] = {0, 0, 0, 0};
21 
22  if (this->write(&raw_data[0], 0) != i2c::ERROR_OK) {
23  this->status_set_warning();
24  ESP_LOGE(TAG, "Communication with HYT271 failed! => Ask new values");
25  return;
26  }
27  this->set_timeout("wait_convert", 50, [this]() {
28  uint8_t raw_data[4];
29  if (this->read(raw_data, 4) != i2c::ERROR_OK) {
30  this->status_set_warning();
31  ESP_LOGE(TAG, "Communication with HYT271 failed! => Read values");
32  return;
33  }
34  uint16_t raw_temperature = ((raw_data[2] << 8) | raw_data[3]) >> 2;
35  uint16_t raw_humidity = ((raw_data[0] & 0x3F) << 8) | raw_data[1];
36 
37  float temperature = ((float(raw_temperature)) * (165.0f / 16383.0f)) - 40.0f;
38  float humidity = (float(raw_humidity)) * (100.0f / 16383.0f);
39 
40  ESP_LOGD(TAG, "Got Temperature=%.1f°C Humidity=%.1f%%", temperature, humidity);
41 
42  if (this->temperature_ != nullptr)
43  this->temperature_->publish_state(temperature);
44  if (this->humidity_ != nullptr)
45  this->humidity_->publish_state(humidity);
46  this->status_clear_warning();
47  });
48 }
50 
51 } // namespace hyt271
52 } // namespace esphome
sensor::Sensor * humidity_
Definition: hyt271.h:23
const float DATA
For components that import data from directly connected sensors like DHT.
Definition: component.cpp:19
void status_set_warning(const char *message="unspecified")
Definition: component.cpp:151
ErrorCode read(uint8_t *data, size_t len)
reads an array of bytes from the device using an I2CBus
Definition: i2c.h:160
void set_timeout(const std::string &name, uint32_t timeout, std::function< void()> &&f)
Set a timeout function with a unique name.
Definition: component.cpp:69
ErrorCode write(const uint8_t *data, size_t len, bool stop=true)
writes an array of bytes to a device using an I2CBus
Definition: i2c.h:186
No error found during execution of method.
Definition: i2c_bus.h:13
void status_clear_warning()
Definition: component.cpp:166
void dump_config() override
Definition: hyt271.cpp:12
void publish_state(float state)
Publish a new state to the front-end.
Definition: sensor.cpp:39
uint16_t temperature
Definition: sun_gtil2.cpp:26
void update() override
Update the sensor values (temperature+humidity).
Definition: hyt271.cpp:19
This is a workaround until we can figure out a way to get the tflite-micro idf component code availab...
Definition: a01nyub.cpp:7
float get_setup_priority() const override
Definition: hyt271.cpp:49
sensor::Sensor * temperature_
Definition: hyt271.h:22