stcc4.h

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#pragma once
 
#include "esphome/core/component.h"
#include "esphome/components/sensor/sensor.h"
#include "esphome/components/sensirion_common/i2c_sensirion.h"
 
namespace esphome::stcc4 {
 
enum class MeasurementMode : uint8_t {
  CONTINUOUS = 0,
  SINGLE_SHOT,
};
 
class STCC4Component final : public PollingComponent, public sensirion_common::SensirionI2CDevice {
  SUB_SENSOR(co2)
  SUB_SENSOR(temperature)
  SUB_SENSOR(humidity)
 
 public:
  void setup() override;
  void dump_config() override;
  void update() override;
 
  void set_temperature_source(sensor::Sensor *temperature) { this->temperature_source_ = temperature; }
  void set_humidity_source(sensor::Sensor *humidity) { this->humidity_source_ = humidity; }
  void set_ambient_pressure_compensation(float pressure_in_hpa);
  void set_ambient_pressure_source(sensor::Sensor *pressure) { this->ambient_pressure_source_ = pressure; }
  void set_measurement_mode(MeasurementMode mode) { this->measurement_mode_ = mode; }
 
 protected:
  void poll_until_ready_for_setup_or_timeout_(uint32_t start_time);
  void finish_setup_();
  void schedule_continuous_update_(bool retry_for_clock_drift);
  bool read_measurement_(uint8_t sensirion_options);
  void update_rht_compensation_from_source_();
  void update_ambient_pressure_compensation_from_source_();
  bool write_rht_compensation_(uint16_t temperature_in_ticks, uint16_t humidity_in_ticks);
  bool write_ambient_pressure_compensation_(uint16_t pressure_in_pa_2);
 
  sensor::Sensor *temperature_source_{nullptr};
  sensor::Sensor *humidity_source_{nullptr};
  sensor::Sensor *ambient_pressure_source_{nullptr};
 
  MeasurementMode measurement_mode_{MeasurementMode::CONTINUOUS};
 
  uint16_t temperature_in_ticks_{0};
  uint16_t humidity_in_ticks_{0};
  uint16_t ambient_pressure_in_pa_2_{0};
  bool ambient_pressure_unit_warning_logged_{false};
  bool ready_{false};
};
 
}  // namespace esphome::stcc4