esphome/esphome/components/scd4x/scd4x.h
Stephen Tierney af04f565cf
Add support for SCD4X (#2217)
* Initial commit

* clang-format fixes

* Update CODEOWNERS

* clang-format fixes

* Fix merge error

* Fix missing return

Co-authored-by: Otto winter <otto@otto-winter.com>
2021-09-28 22:10:25 +02:00

53 lines
1.7 KiB
C++

#pragma once
#include "esphome/core/component.h"
#include "esphome/components/sensor/sensor.h"
#include "esphome/components/i2c/i2c.h"
namespace esphome {
namespace scd4x {
enum ERRORCODE { COMMUNICATION_FAILED, SERIAL_NUMBER_IDENTIFICATION_FAILED, MEASUREMENT_INIT_FAILED, UNKNOWN };
class SCD4XComponent : public PollingComponent, public i2c::I2CDevice {
public:
float get_setup_priority() const override { return setup_priority::DATA; }
void setup() override;
void dump_config() override;
void update() override;
void set_automatic_self_calibration(bool asc) { enable_asc_ = asc; }
void set_altitude_compensation(uint16_t altitude) { altitude_compensation_ = altitude; }
void set_ambient_pressure_compensation(float pressure) {
ambient_pressure_compensation_ = true;
ambient_pressure_ = (uint16_t)(pressure * 1000);
}
void set_temperature_offset(float offset) { temperature_offset_ = offset; };
void set_co2_sensor(sensor::Sensor *co2) { co2_sensor_ = co2; }
void set_temperature_sensor(sensor::Sensor *temperature) { temperature_sensor_ = temperature; };
void set_humidity_sensor(sensor::Sensor *humidity) { humidity_sensor_ = humidity; }
protected:
uint8_t sht_crc_(uint8_t data1, uint8_t data2);
bool read_data_(uint16_t *data, uint8_t len);
bool write_command_(uint16_t command);
bool write_command_(uint16_t command, uint16_t data);
ERRORCODE error_code_;
bool initialized_{false};
float temperature_offset_;
uint16_t altitude_compensation_;
bool ambient_pressure_compensation_;
uint16_t ambient_pressure_;
bool enable_asc_;
sensor::Sensor *co2_sensor_{nullptr};
sensor::Sensor *temperature_sensor_{nullptr};
sensor::Sensor *humidity_sensor_{nullptr};
};
} // namespace scd4x
} // namespace esphome