MeaSpecMS5803 class

The Sensor sub-class for the Measurement Specialties MS5803 sensor.

Base classes

class Sensor: The "Sensor" class is used for all sensor-level operations - waking, sleeping, and taking measurements.

Constructors, destructors, conversion operators

MeaSpecMS5803(int8_t powerPin, uint8_t i2cAddressHex = 0x76, int16_t maxPressure = 14, uint8_t measurementsToAverage = 1) explicit: Construct a new MeaSpecMS5803 object.
~MeaSpecMS5803(): Destroy the MeaSpecMS5803 object.

Public functions

bool setup(void ) override: Do any one-time preparations needed before the sensor will be able to take readings.
String getSensorLocation(void ) override: Get the pin or connection location between the mcu and the sensor.
bool addSingleMeasurementResult(void ) override: Get the results from a single measurement.

Function documentation

MeaSpecMS5803(int8_t powerPin, uint8_t i2cAddressHex = 0x76, int16_t maxPressure = 14, uint8_t measurementsToAverage = 1) explicit

Construct a new MeaSpecMS5803 object.

Parameters
powerPin	The pin on the mcu controlling power to the MS5803 Use -1 if it is continuously powered. The MS5803 requires a 1.7 - 3.6V power source
i2cAddressHex	The I2C address of the MS5803; must be either 0x76 or 0x77. The default value is 0x76.
maxPressure	The maximum pressure of the specific MS5803 in bar. The sensors are maufactured with maximum pressures of 1.1 bar, 1.3 bar, 5 bar, 7 bar, 14 bar, and 30 bar.
measurementsToAverage	The number of measurements to take and average before giving a "final" result from the sensor; optional with a default value of 1.

bool setup(void ) override

Do any one-time preparations needed before the sensor will be able to take readings.

Returns	bool True if the setup was successful.

This sets the pin modes for _powerPin and I2C, reads coefficients from the MS5803, and updates the _sensorStatus. The MS5803 must be powered for setup. The wrapped function reading the coefficients doesn't return anything to indicate failure or success, we just have to hope it succeeded.

String getSensorLocation(void ) override

Get the pin or connection location between the mcu and the sensor.

Returns	String Text describing how the sensor is attached to the mcu.

bool addSingleMeasurementResult(void ) override

Get the results from a single measurement.

Returns	bool True if the function completed successfully.

This asks the sensor for a new result, verifies that it passes sanity range checks, and then adds the value to the result array.

This also un-sets the _millisMeasurementRequested timestamp (sets _millisMeasurementRequested to 0) and updates the _sensorStatus.