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https://github.com/RobTillaart/Arduino.git
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95 lines
2.0 KiB
C++
95 lines
2.0 KiB
C++
#pragma once
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//
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// FILE: ACD10.h
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// AUTHOR: Rob Tillaart
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// DATE: 2023-09-25
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// VERSION: 0.1.3
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// PURPOSE: Arduino library for for I2C ACD10 CO2 sensor
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// URL: https://github.com/RobTillaart/ACD10
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// http://www.aosong.com/en/products-77.html
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#include "Arduino.h"
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#include "Wire.h"
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#define ACD10_LIB_VERSION (F("0.1.3"))
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#define ACD10_DEFAULT_ADDRESS 0x2A
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// ERROR CODES
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// values <> 0 are errors.
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#define ACD10_OK 0x00
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#define ACD10_CRC_ERROR 0x01
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#define ACD10_NOT_READY 0x10
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#define ACD10_REQUEST_ERROR 0x11
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class ACD10
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{
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public:
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ACD10(TwoWire *wire = &Wire);
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bool begin();
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bool isConnected();
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uint8_t getAddress();
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// READ
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bool preHeatDone();
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uint32_t preHeatMillisLeft();
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int requestSensor();
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bool requestReady();
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int readSensor();
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uint32_t getCO2Concentration();
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uint16_t getTemperature();
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uint32_t lastRead();
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void setRequestTime(uint8_t milliseconds = 80);
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uint8_t getRequestTime();
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// CALIBRATION (! read datasheet)
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// 0 = manual 1 = auto
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bool setCalibrationMode(uint8_t mode);
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uint8_t readCallibrationMode();
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bool setManualCalibration(uint16_t value);
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uint16_t readManualCalibration();
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// MISCELLANEOUS
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void factoryReset();
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bool readFactorySet();
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void readFirmwareVersion(char * arr); // length(arr) > 11
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void readSensorCode(char * arr); // length(arr) > 11
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// DEBUG
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int getLastError();
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private:
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uint8_t _address = 0x2A; // fixed
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TwoWire* _wire;
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int _command(uint8_t * arr, uint8_t size);
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int _request(uint8_t * arr, uint8_t size);
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uint8_t _crc8(uint8_t * arr, uint8_t size);
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uint32_t _preHeatStart;
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uint32_t _lastRead;
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uint32_t _concentration; // why datasheet states 32 bit as 400-5000 fit in 16 bit??
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uint16_t _temperature;
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uint8_t _requestTime;
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uint32_t _requestStart;
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uint8_t _error;
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};
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// -- END OF FILE --
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