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95 lines
3.3 KiB
Markdown
95 lines
3.3 KiB
Markdown
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[](https://github.com/marketplace/actions/arduino_ci)
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[](https://github.com/RobTillaart/HMC6352/actions/workflows/arduino-lint.yml)
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[](https://github.com/RobTillaart/HMC6352/actions/workflows/jsoncheck.yml)
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[](https://github.com/RobTillaart/HMC6352/blob/master/LICENSE)
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[](https://github.com/RobTillaart/HMC6352/releases)
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# HMC6352
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Arduino library for HMC6352 compass sensor
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## Description
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**BETA: WARNING: BETA: WARNING: BETA: WARNING: BETA:**
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This library is BETA, only tested partially and not thoroughly
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No guarantees, use at own risk, all disclaimers apply
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The example sketch can be used to configuration the compass.
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For switching operational mode one must reboot the device.
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**WARNING: BETA: WARNING: BETA: WARNING: BETA: WARNING:**
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## Interface
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### Constructor
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- **hmc6352(uint8_t address, TwoWire \*wire = &Wire)** set the I2C address and optional the Wire interface.
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- **bool begin(uint8_t sda, uint8_t scl)** for ESP32 ea. Returns true if address can be seen on the I2C bus.
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- **bool begin()** for UNO, Returns true if address can be seen on the I2C bus.
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- **bool isConnected()** Returns true if address can be seen on the I2C bus. Can be used as 1st order diagnostics.
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### Base calls standby mode
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- **int getHeading()** is a combination of **askHeading()** and **readHeading()**
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- **int askHeading()** requests a new read of the heading (compass direction).
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- **int readHeading()** reads the new value from the device.
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- **int wakeUp()** if the deivice is in sleep mode, wake it up.
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- **int sleep()** puts the device in sleep mode.
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### Expert calls
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Warning: use with care: read the datasheet for the details
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- **int factoryReset()** idem
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- **int setOperationalModus(hmcMode mode, uint8_t frequency, bool periodicReset)**
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- **int getOperationalModus()**
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- **int setOutputModus(uint8_t outputModus)**
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- **int getOutputModus()**
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- **int callibrationOn()**
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- **int callibrationOff()**
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- **int setI2CAddress(uint8_t address)** writes the I2C address in EEPROM to use after the next reboot.
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- **int getI2CAddress()** reads the I2C address stored in EEPROM.
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### Helper functions
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Warning: use with care: read the datasheet for the details
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- **int writeEEPROM(uint8_t address, uint8_t data)** EEPROM IO function
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- **int readEEPROM(uint8_t address)** EEPROM IO function
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- **int writeRAM(uint8_t address, uint8_t data)** RAM IO function
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- **int readRAM(uint8_t address)** RAM IO function
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- **int saveOpMode(byte OpMode)** allow power users to set operational mode flags
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### NOT TESTED
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Warning: use with care: read the datasheet for the details
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- **int setTimeDelay(uint8_t milliSeconds)**
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- **int getTimeDelay()**
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- **int setMeasurementSumming(uint8_t NrOfMeasurements)** 1..16
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- **int getMeasurementSumming()** returns 1..16
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- **int updateOffsets(void)**
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## Operation
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See examples
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## Future
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- update documentation
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- testing AVR
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- testing ESP32
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- test examples => more specific?
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