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170d52e0db
* Split the SGP30 baseline into 2 values - According to the SGP30 datasheet, each eCO2 and TVOC baseline is a 2-byte value (MSB first) - The current implementation ignores the MSB of each of the value - Update the schema to allow 2 different baseline values (optional, but both need to be specified for the baseline to apply) * Make both eCO2 and TVOC required if the optional baseline is defined * Make dump_config() looks better
57 lines
1.9 KiB
C++
57 lines
1.9 KiB
C++
#pragma once
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#include "esphome/core/component.h"
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#include "esphome/components/sensor/sensor.h"
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#include "esphome/components/i2c/i2c.h"
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#include <cmath>
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namespace esphome {
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namespace sgp30 {
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/// This class implements support for the Sensirion SGP30 i2c GAS (VOC and CO2eq) sensors.
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class SGP30Component : public PollingComponent, public i2c::I2CDevice {
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public:
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void set_eco2_sensor(sensor::Sensor *eco2) { eco2_sensor_ = eco2; }
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void set_tvoc_sensor(sensor::Sensor *tvoc) { tvoc_sensor_ = tvoc; }
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void set_eco2_baseline(uint16_t eco2_baseline) { eco2_baseline_ = eco2_baseline; }
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void set_tvoc_baseline(uint16_t tvoc_baseline) { tvoc_baseline_ = tvoc_baseline; }
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void set_humidity_sensor(sensor::Sensor *humidity) { humidity_sensor_ = humidity; }
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void set_temperature_sensor(sensor::Sensor *temperature) { temperature_sensor_ = temperature; }
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void setup() override;
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void update() override;
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void dump_config() override;
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float get_setup_priority() const override { return setup_priority::DATA; }
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protected:
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bool write_command_(uint16_t command);
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bool read_data_(uint16_t *data, uint8_t len);
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void send_env_data_();
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void read_iaq_baseline_();
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bool is_sensor_baseline_reliable_();
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void write_iaq_baseline_(uint16_t eco2_baseline, uint16_t tvoc_baseline);
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uint8_t sht_crc_(uint8_t data1, uint8_t data2);
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uint64_t serial_number_;
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uint16_t featureset_;
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long required_warm_up_time_;
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enum ErrorCode {
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COMMUNICATION_FAILED,
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MEASUREMENT_INIT_FAILED,
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INVALID_ID,
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UNSUPPORTED_ID,
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UNKNOWN
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} error_code_{UNKNOWN};
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sensor::Sensor *eco2_sensor_{nullptr};
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sensor::Sensor *tvoc_sensor_{nullptr};
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uint16_t eco2_baseline_{0x0000};
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uint16_t tvoc_baseline_{0x0000};
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/// Input sensor for humidity and temperature compensation.
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sensor::Sensor *humidity_sensor_{nullptr};
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sensor::Sensor *temperature_sensor_{nullptr};
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};
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} // namespace sgp30
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} // namespace esphome
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