BlueRobotics MS5837 Library

Arduino library for the MS5837 pressure sensor. The MS5837 is a tiny SMT pressures sensor from Measurement Specialties that can measure pressure of up to 30 Bar (300m depth) with resolution of 0.2 mbar.

This library also supports the MS5837-02BA which has a much smaller measurement range and is better suited for altitude measurement in air.

Documentation

Please see the examples for normal operation. Below are the available functions used in the library.

cpp
MS5837();

/** Must be called before attempting to operate the sensor.
 * Returns true if the sensor was initialized successfully.
 * wirePort is optional and defaults to Wire.
 * You can select a different port by calling (e.g.) init(Wire1)
 */
bool init(TwoWire &wirePort);

/** Calls init.
 * Returns true if the sensor was initialized successfully.
 */
bool begin(TwoWire &wirePort);

/** Set model of MS5837 sensor. Valid options are MS5837::MS5837_30BA (default)
 * and MS5837::MS5837_02BA.
 */
void setModel(uint8_t model);

/** Provide the density of the working fluid in kg/m^3. Default is for
 * seawater. Should be 997 for freshwater.
 */
void setFluidDensity(float density);

/** The read from I2C takes up for 40 ms, so use sparingly if possible.
 */
void read();

/** Pressure returned in mbar or mbar*conversion rate.
 */
float pressure(float conversion = 1.0f);

/** Temperature returned in deg C.
 */
float temperature();

/** Depth returned in meters (valid for operation in incompressible
 *  liquids only. Uses density that is set for fresh or seawater.
 */
float depth();

/** Altitude returned in meters (valid for operation in air only).
 */
float altitude();