MS5611

Arduino library for MS5611 temperature and pressure sensor

Description

The MS5611 is a high resolution temperature and pressure sensor. The high resolution is made possible by oversampling (many times).

0.3.0 breaking changes

fixed math error so previous versions are obsolete
temperature is a float expressed in degrees Celsius.
pressure is a float expressed in mBar.

Interface

MS5611(uint8_t deviceAddress) constructor
bool begin(uint8_t sda, uint8_t scl, TwoWire *wire = &Wire) for ESP and alike, optionally set Wire interface. initializes internals,
bool begin(TwoWire *wire = &Wire) for UNO and alike, optionally set Wire interface. Initializes internals
bool isConnected() checks availability of deviceaddress on the I2C bus.
reset() resets the chip and loads constants from it.
int read(uint8_t bits = 8) the actual reading of the sensor. Returns MS5611_READ_OK upon success
float getTemperature() returns temperature in °C. Subsequent calls will return same value until a new read() is called.
float getPressure() pressure is in mBar. Subsequent calls will return same value until a new read() is called.
int getLastResult() checks last I2C communication (replace with more informative error handling?)
uint32_t lastRead() last time in millis() when read() was called.

Disclaimer

The library is experimental. As I have no such sensor the quality is hard to test. So if you happen to have such a sensor, please give it a try and let me know.

TODO

proper error handling
redo lower level functions?
SPI version?

Operation

See examples

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