[![Arduino CI](https://github.com/RobTillaart/MS5611/workflows/Arduino%20CI/badge.svg)](https://github.com/marketplace/actions/arduino_ci) [![License: MIT](https://img.shields.io/badge/license-MIT-green.svg)](https://github.com/RobTillaart/MS5611/blob/master/LICENSE) [![GitHub release](https://img.shields.io/github/release/RobTillaart/MS5611.svg?maxAge=3600)](https://github.com/RobTillaart/MS5611/releases) # 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 1. fixed math error so previous versions are obsolete 2. temperature is a float expressed in degrees Celsius. 3. 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