bmp280
Add-On Required: This feature requires the MATLAB Support Package for Arduino Hardware add-on.
Description
The bmp280
object reads barometric air pressure and ambient temperature
using the BMP280 sensor.
The bmp280
object represents a connection to the device on the
Arduino® hardware I2C bus. Attach an BMP280 sensor to the I2C pins on the Arduino
hardware. You can read the data from your sensor in MATLAB®using the object functions.
Before you use the bmp280
object, create an Arduino object using arduino and set its properties. When you create the
Arduino object, make sure that you include the I2C library. For more information, see Connect to Arduino Hardware.
Creation
Description
creates a sensor object with default property values. The object represents the connection
to the sensor on the Arduino hardware, pressureSensor
= bmp280(a
)a
.
creates a sensor object with properties using one or more pressureSensor
= bmp280(a
,Name,Value
)Name,Value
pair arguments.
Example:
pressureSensor =
bmp280(a,'SampleRate',150,'SamplesPerRead',5,'ReadMode','latest');
.
Input Arguments
Properties
Usage
Create BMP280 Sensor Connection
Create an Arduino object and include the I2C library.
a = arduino();
Or, you can explicitly specify it in the Libraries
Name-Value pair
while creating the Arduino object.
clear a; a = arduino('COM4', 'Uno', 'Libraries', 'I2C');
Create the sensor object.
pressureSensor = bmp280(a)
pressureSensor = bmp280 with properties: I2CAddress: 104 ("0x76") SCLPin: "A5" SDAPin: "A4" SampleRate: 100 (Samples/s) SamplesPerRead: 10 ReadMode: 'latest' SamplesRead: 0 SamplesAvailable: 0 Show all properties, functions
Create BMP280 Sensor Connection with Additional Name-Value Pair Arguments
Create a sensor object with additional properties specified as name-value pair arguments.
clear pressureSensor; pressureSensor = bmp280(a,'SampleRate',50,'SamplesPerRead',5,'ReadMode','oldest')
pressureSensor = bmp280 with properties: I2CAddress: 104 ("0x76") SCLPin: "A5" SDAPin: "A4" SampleRate: 50 (Samples/s) SamplesPerRead: 5 ReadMode: 'oldest' SamplesRead: 0 SamplesAvailable: 0 Show all properties, functions
Object Functions
readPressure | Read one sample of barometric air pressure data from the sensor |
readTemperature | Read one sample of temperature from sensor |
read | Read real-time sensor data at a specified rate |
release | Release the sensor object |
flush | Flush the host buffer |
info | Read information related to sensor |
More About
Version History
Introduced in R2022b