Barometer

Measure barometric air pressure around the BMP280 sensor

• Library:

• Simulink Coder Support Package for BeagleBone Blue Hardware / Sensors

• 

Description

The Barometer block measures the barometric air pressure around the BMP280 barometer on the BeagleBone^® Blue hardware, in pascal. The block outputs the pressure as a 1-by-1 array of double data type.

If you simulate a model that contains the Barometer block without connecting the hardware, the block outputs zeroes. For more information, see Block Produces Zeros or Does Nothing in Simulation.

Ports

Output

Pressure — Air pressure around barometer

vector

The Pressure port outputs the barometric air pressure around the BMP280 barometer on the hardware. The air pressure is output as a 1-by-1 array in pascal.

Data Types: double

Parameters

Sample time — Time interval to read values from barometer

0.1 (default) | -1 | nonnegative real value

Specify how often the block reads values from the barometer, in seconds. When you specify this parameter as -1, Simulink^® determines the best sample time for the block based on the block context within the model.

Sensor Settings

Over sampling rate — Rate at which values are sampled

8 (default) | 1 | 2 | 4 | 16

Select a rate at which the barometer samples the air pressure values, in Hertz.

IIR filter coefficient — Coefficient of IIR filter

4 (default) | Off | 2 | 8 | 16

Select a coefficient of the infinite impulse response (IIR) filter to reduce the noise-related error in the sampled values.