pyupm_bmpx8x module

class pyupm_bmpx8x.BMPX8X(bus=0, addr=119)

Bases: pyupm_bmpx8x.IPressureSensor, pyupm_bmpx8x.ITemperatureSensor

API for the GY65/BMP085 and BMP180 Atmospheric Pressure Sensors.

ID: bmpx8x

Name: BMP Atmospheric Pressure Sensor

Other Names: GY65 BMP085 BMP180 BMP183

Category: pressure

Manufacturer: bosch seeed adafruit sparkfun

Connection: i2c

Link:https://www.sparkfun.com/datasheets/Components/General/BST- BMP085-DS000-05.pdf

Link:https://www.bosch-sensortec.com/bst/products/all_products/bmp180

Link:https://cdn-shop.adafruit.com/datasheets/1900_BMP183.pdf Bosch GY65/BMP085 and BMP180 are high-precision, ultra-low power consumption pressure sensors. They operate in the range of 30,000-110,000 Pa.

This module has been tested on the GY65/BMP085 and BMP180 sensors.

C++ includes: bmpx8x.hpp

getAltitude(sealevelPressure=101325)

float getAltitude(int sealevelPressure=101325)

Calculate the current altitude in meters, given a sea level pressure in Pascals. The default sea level pressure is 101325 Pascals. update() must have been called prior to calling this function.

sealevelPressure: The pressure at sea level in Pascals. The default is 101325 Pascals.

the computed altitude in meters.

getModuleName()

const char* getModuleName()

Returns the name of module.

The name of the module.

getPressure()

int getPressure()

Returns the calculated pressure in Pascals. update() must have been called prior to calling this function.

The pressure in Pascals.

getPressurePa()

int getPressurePa()

Return latest calculated pressure value in Pascals. See IPressureSensor.

The current pressure in Pascals.

getSealevelPressure(*args)

int getSealevelPressure()

Using the current calculated altitude, compute the pressure at sea level in Pascals. update() must have been called prior to calling this function.

The computed sea level pressure in Pascals.

getTemperature()

float getTemperature()

Returns the calculated temperature in Celsius. update() must have been called prior to calling this function.

The temperature in Celsius.

getTemperatureCelsius()

int getTemperatureCelsius()

Return latest calculated temperature value in Celsius. See ITemperatureSensor.

The current temperature in Celsius.

init(oss=3)

void init(BMPX8X_OSS_T oss=BMPX8X_OSS_ULTRAHIGHRES)

Initialize the device, read calibration data, and start operation. This function is called from the constructor, so it will not typically need to be called by a user unless the device is reset.

oss: One of the BMPX8X_OSS_T values. The default is BMPX8X_OSS_ULTRAHIGHRES.

std::runtime_error: on failure.

reset()

void reset()

Reset the device to power-on defaults. All calibration data is lost when the device is reset, so you should call init() before attempting to use the device.

std::runtime_error: on failure.

setOversampling(oss=3)

void setOversampling(BMPX8X_OSS_T oss=BMPX8X_OSS_ULTRAHIGHRES)

Set the oversampling (precision mode) of the device. Higher precision requires more time to complete. This call takes effect the next time update() is called.

oss: One of the BMPX8X_OSS_T values. The default is BMPX8X_OSS_ULTRAHIGHRES.

update()

void update()

Query the device and update the internal state. This method must be called before calling getPressure(), getTemperature(), getSealevelPressure(), and getAltitude() to retrieve values.

std::runtime_error: on failure.

class pyupm_bmpx8x.IModuleStatus(*args, **kwargs)

Bases: object

getModuleName()

virtual const char* getModuleName()=0

Returns name of module. This is the string in library name after libupm_

name of module

class pyupm_bmpx8x.IPressureSensor(*args, **kwargs)

Bases: pyupm_bmpx8x.IModuleStatus

getPressurePa()

virtual int getPressurePa()=0

class pyupm_bmpx8x.ITemperatureSensor(*args, **kwargs)

Bases: pyupm_bmpx8x.IModuleStatus

Interface for Temperature Sensors.

C++ includes: iTemperatureSensor.hpp

getTemperatureCelsius()

virtual int getTemperatureCelsius()=0