ABP Class Reference

API for the ABP Honeywell Pressure Sensor. More...

Detailed Description

• ID: abp
• Name: Honeywell ABP Pressure and Temperature Sensor
• Category: other
• Manufacturer: Honeywell
• Link: https://sensing.honeywell.com/honeywell-sensing-basic-board-mount-pressure-sensors-abp-series-datasheet-323005128-c-en.pdf
• Connection: i2c
• Kit: other

This is the UPM Module for the ABP Honeywell Pressure and Temp sensor. This sensor uses an onboard ASIC to output values of pressure that are updated at approximately 2 KHz. It is capable of detecting pressure in the 0-5 psi range and it has an i2c based interface. Temperature calculation using this driver is possible but not all ABP sensors support that functionality.

NOTE: This driver supports only the I2C based ABP sensors, it does not currently support SPI and Analog based sensors.

    // Instantiate an ABP sensor on i2c bus 0
    upm::ABP abp(0, ABP_DEFAULT_ADDRESS);
    while (shouldRun) {
        abp.update();
        cout << "Retrieved pressure: " << abp.getPressure() << endl;
        cout << "Retrieved Temperature: " << abp.getTemperature() << endl;

        upm_delay(1);
    }

Public Member Functions
	ABP (int bus, int devAddress)
	~ABP ()
float	getPressure ()
float	getTemperature ()
void	update ()
void	setMaxPressure (int max)
void	setMinPressure (int min)

Constructor & Destructor Documentation

ABP	(	int	bus,
		int	devAddress
	)

ABP constructor

Parameters

bus	i2c bus to be used
devAddress	i2c address of the sensor

~ABP

(

)

ABP destructor

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Member Function Documentation

float getPressure

(

)

Function to get the compensated pressure. The datasheet provides a way to calculate the pressure. In order to know the units take a look at the datasheet.

Returns

float compensated temperature value

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float getTemperature

(

)

Function to retrieve the compensated temperature values. All ABP seem to calculate temperature in degree Celsius. (The above fact needs to be verified) NOTE: This functionality is not available in all the ABP sensors.

Returns

float compensated temperature value

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void update

(

)

This functio has to be called before calling either of the get temperature or get pressure functions. This function updates the device context with the latest values. Not calling this function will lead to stale values.

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void setMaxPressure

(

int

max

)

Function to set the max pressure that the sensor can read, can be retrieved from the datasheet, if this function is not explicitly called to the set the min value, then a default max value of 5 will be set.

Parameters

max	int maximum pressure value possible

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void setMinPressure

(

int

min

)

Function to set the min pressure that the sensor can read, can be retrieved from the datasheet, if this function is not explicitly called to the set the min value, then a default min value of 0 will be set.

Parameters

min	int minimum pressure value possible

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The documentation for this class was generated from the following files:

• src/abp/abp.hpp
• src/abp/abp.cxx