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f33fd047ee
Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com> Co-authored-by: Big Mike <mikelawrence@users.noreply.github.com> Co-authored-by: pre-commit-ci-lite[bot] <117423508+pre-commit-ci-lite[bot]@users.noreply.github.com> Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> Co-authored-by: Jonathan Swoboda <154711427+swoboda1337@users.noreply.github.com>
72 lines
2.7 KiB
C++
72 lines
2.7 KiB
C++
#include "hdc2080.h"
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#include "esphome/core/hal.h"
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#include "esphome/core/log.h"
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namespace esphome::hdc2080 {
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static const char *const TAG = "hdc2080";
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// Register map (Table 8-6)
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static constexpr uint8_t REG_TEMPERATURE_LOW = 0x00; // Temperature [7:0]
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static constexpr uint8_t REG_TEMPERATURE_HIGH = 0x01; // Temperature [15:8]
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static constexpr uint8_t REG_HUMIDITY_LOW = 0x02; // Humidity [7:0]
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static constexpr uint8_t REG_HUMIDITY_HIGH = 0x03; // Humidity [15:8]
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static constexpr uint8_t REG_RESET_DRDY_INT_CONF = 0x0E; // Soft Reset and Interrupt Configuration
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static constexpr uint8_t REG_MEASUREMENT_CONFIGURATION = 0x0F;
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// Measurement register (0x0F) bit fields
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static constexpr uint8_t MEAS_TRIG = 0x01; // Bit 0: start measurement
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static constexpr uint8_t MEAS_CONF_TEMP = 0x02; // Bits 2:1 = 01: temperature only
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static constexpr uint8_t MEAS_CONF_HUM = 0x04; // Bits 2:1 = 10: humidity only
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void HDC2080Component::setup() {
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const uint8_t data = 0x00; // automatic measurement mode disabled, heater off
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if (this->write_register(REG_RESET_DRDY_INT_CONF, &data, 1) != i2c::ERROR_OK) {
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this->mark_failed(ESP_LOG_MSG_COMM_FAIL);
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return;
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}
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}
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void HDC2080Component::dump_config() {
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ESP_LOGCONFIG(TAG, "HDC2080:");
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LOG_I2C_DEVICE(this);
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LOG_UPDATE_INTERVAL(this);
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LOG_SENSOR(" ", "Temperature", this->temperature_sensor_);
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LOG_SENSOR(" ", "Humidity", this->humidity_sensor_);
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if (this->is_failed()) {
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ESP_LOGE(TAG, ESP_LOG_MSG_COMM_FAIL);
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}
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}
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void HDC2080Component::update() {
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uint8_t data = MEAS_TRIG; // 14-bit resolution, measure both, start
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if (this->temperature_sensor_ != nullptr && this->humidity_sensor_ == nullptr) {
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data = MEAS_TRIG | MEAS_CONF_TEMP;
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} else if (this->temperature_sensor_ == nullptr && this->humidity_sensor_ != nullptr) {
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data = MEAS_TRIG | MEAS_CONF_HUM;
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}
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if (this->write_register(REG_MEASUREMENT_CONFIGURATION, &data, 1) != i2c::ERROR_OK) {
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this->status_set_warning(ESP_LOG_MSG_COMM_FAIL);
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return;
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}
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// wait for conversion to complete 2ms should be enough, more is fine
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this->set_timeout(5, [this]() {
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uint8_t raw_data[4];
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if (this->read_register(REG_TEMPERATURE_LOW, raw_data, 4) != i2c::ERROR_OK) {
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this->status_set_warning(ESP_LOG_MSG_COMM_FAIL);
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return;
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}
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this->status_clear_warning();
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if (this->temperature_sensor_ != nullptr) {
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float temp = encode_uint16(raw_data[1], raw_data[0]) * (165.0f / 65536.0f) - 40.5f;
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this->temperature_sensor_->publish_state(temp);
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}
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if (this->humidity_sensor_ != nullptr) {
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float humidity = encode_uint16(raw_data[3], raw_data[2]) * (100.0f / 65536.0f);
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this->humidity_sensor_->publish_state(humidity);
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}
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});
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}
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} // namespace esphome::hdc2080
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