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https://github.com/RobTillaart/Arduino.git
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84 lines
1.7 KiB
C++
84 lines
1.7 KiB
C++
#pragma once
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//
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// FILE: MSP300.h
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// AUTHOR: Rob Tillaart
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// VERSION: 0.3.0
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// PURPOSE: Arduino library for I2C MSP300 pressure transducer.
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// URL: https://github.com/RobTillaart/MSP300
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#include "Arduino.h"
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#include "Wire.h"
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#define MSP300_LIB_VERSION (F("0.3.0"))
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// ERROR AND STATUS CODES
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#define MSP300_OK 0
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#define MSP300_RESERVED 1
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#define MSP300_STALE_DATA 2
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#define MSP300_READ_ERROR 3
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#define MSP300_REQUEST_ERROR 100
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/////////////////////////////////////////////////
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//
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// MSP300
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//
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class MSP300
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{
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public:
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explicit MSP300(const uint8_t deviceAddress = 0x28, TwoWire *wire = &Wire);
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bool begin(int maxValue);
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bool isConnected();
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// set the address to select other sensor if needed.
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bool setAddress(const uint8_t deviceAddress);
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uint8_t getAddress();
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// READ
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uint32_t readP(); // returns _raw, reads S + P
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uint32_t readPT(); // returns _raw, reads S + P + T
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uint8_t getStatus(); // 0 == OK, other = error.
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float getPressure();
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float getTemperature();
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// CALIBRATION
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// use with care!
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// read datasheet page 5
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// Pmin = count at zero pressure
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// Pmax = count at max pressure (which depends on sensor);
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// 1000 and 15000 are the default counts from datasheet.
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void setPressureCounts(int Pmin = 1000, int Pmax = 15000);
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int getPmin();
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int getPmax();
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// ERROR HANDLING
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int lastError();
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private:
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uint8_t _address;
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int _error;
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int _maxValue;
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float _pressure;
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float _temperature;
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uint8_t _status;
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float _pressureFactor;
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int _Pmin;
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int _Pmax;
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TwoWire* _wire;
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void _request();
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uint32_t _read(uint8_t bytes);
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};
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// -- END OF FILE --
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