mirror of
https://github.com/RobTillaart/Arduino.git
synced 2024-09-20 00:55:58 -04:00
126 lines
3.5 KiB
C++
126 lines
3.5 KiB
C++
#pragma once
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//
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// FILE: ADT7470.h
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// AUTHOR: Rob Tillaart
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// VERSION: 0.2.0
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// PURPOSE: Arduino library for I2C ADT7470 Fan Monitoring
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// URL: https://github.com/RobTillaart/ADT7470
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// http://forum.arduino.cc/index.php?topic=363218.0
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#include "Arduino.h"
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#include "Wire.h"
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#define ADT7470_LIB_VERSION (F("0.2.0"))
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#ifndef ADT7470_TIMEOUT
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#define ADT7470_TIMEOUT 1000
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#endif
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#ifndef ADT7470_ADDR_HIGH
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#define ADT7470_ADDR_HIGH 0x2F
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#endif
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#ifndef ADT7470_ADDR_LOW
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#define ADT7470_ADDR_LOW 0x2C
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#endif
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#ifndef ADT7470_ADDR_FLOAT
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#define ADT7470_ADDR_FLOAT 0x2E
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#endif
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class ADT7470
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{
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public:
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ADT7470(uint8_t address, TwoWire *wire = &Wire);
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bool begin();
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// GENERIC
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bool isConnected();
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uint8_t getRevision();
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uint8_t getDeviceID(); // should return 0x70
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uint8_t getCompanyID(); // should return 0x41
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void startMonitoring();
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void stopMonitoring();
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void powerDown();
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void powerUp();
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// MEASURE TEMPERATURE - not tested
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// Page 13 daisy chained specific TMP05 / TMP06 sensors
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int8_t getTemperature(uint8_t index);
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int8_t getMaxTemperature();
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// Page 16
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bool setTemperatureLimit(uint8_t index, int8_t low, int8_t high);
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int8_t getTemperatureLowLimit(uint8_t index);
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int8_t getTemperatureHighLimit(uint8_t index);
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// SET FAN SPEED
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// Page 25 index = 0..3
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bool setPWM(uint8_t index, uint8_t value);
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uint8_t getPWM(uint8_t index);
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// Page 36 value = 0..7
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bool setFanLowFreq(uint8_t value = 0); // PWM freq..
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bool setFanHighFreq(uint8_t value = 0);
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// Page 21
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void setInvertPWM(uint8_t index);
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uint8_t getInvertPWM(uint8_t index);
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// MEASURE FAN SPEED
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// Page 23-24 index = 0..3 value = 1..4
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bool setPulsesPerRevolution(uint8_t index, uint8_t value);
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// returns 1..4
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uint8_t getPulsesPerRevolution(uint8_t index);
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// P30 FST_TCH fast = measurement/250 ms slow = measurement/1000ms.
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void setFastTach();
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void setSlowTach();
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uint16_t getTach(uint8_t index);
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uint32_t getRPM(uint8_t index);
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// Page 16 TACH/FAN ALARM
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bool setTachLimits(uint8_t index, uint16_t low, uint16_t high);
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uint16_t getTachLowLimits(uint8_t index);
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uint16_t getTachHighLimits(uint8_t index);
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// INTERRUPTS
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// Page 17 - every bit set 0..10 represents one temp limit (high /low) exceeded
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// if it return 0 => no limits exceeded.
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uint16_t getTemperatureIRQstatus();
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uint8_t getFanIRQstatus();
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// index = 0..9
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void setTemperatureIRQMask(uint8_t index);
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void clrTemperatureIRQMask(uint8_t index);
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uint8_t getTemperatureIRQMask(uint8_t index);
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// index = 0..3
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void setFanIRQMask(uint8_t index);
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void clrFanIRQMask(uint8_t index);
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uint8_t getFanIRQMask(uint8_t index);
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// REGISTER OPERATORS
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// set/clr one or more bits.
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void setRegMask(uint8_t reg, uint8_t mask);
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void clrRegMask(uint8_t reg, uint8_t mask);
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// low level register interface
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uint8_t getReg8(uint8_t reg);
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void setReg8(uint8_t reg, uint8_t value);
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uint16_t getReg16(uint8_t reg);
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void setReg16(uint8_t reg, uint16_t value);
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private:
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// LOW LEVEL I2C
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int _write(const uint8_t reg, uint8_t value);
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int _write(const uint8_t reg, uint8_t *buffer, uint8_t length);
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int _read(const uint8_t reg, uint8_t *value);
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int _read(const uint8_t reg, uint8_t *buffer, uint8_t length);
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uint8_t _address = 0;
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TwoWire* _wire;
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};
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// -- END OF FILE --
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