Sensor Data Collection

Collect data from your mobile device position and motion sensors, camera, and microphone

With MATLAB^®, MATLAB Mobile™, or MATLAB Online™, you can acquire and log sensor, microphone, and camera data from your mobile device. Use MATLAB to process this data in various ways, such as plots and processing images.

You can collect data from these sensors:

Acceleration
Angular velocity
Magnetic field
Orientation
Position
Camera
Microphone

You can set camera properties including resolution, autofocus, and flash. You can set microphone properties such as sampling rate.

Functions

expand all

Device Connection and Information

`mobiledev`	Create `mobiledev` object to acquire data from Android sensors
`mobiledevlist`	List of mobile devices with accessible sensor data
`disp`	Display properties of `mobiledev` object

Position and Motion

`accellog`	Return logged acceleration data from Android sensor
`angvellog`	Return logged angular velocity data from Android sensor
`magfieldlog`	Return logged magnetic field data from Android sensor
`orientlog`	Return logged orientation data from Android sensor
`poslog`	Return logged position data from Android sensor
`discardlogs`	Discard all logged data from Android sensors

Audio and Image

`readAudio`	Read collected audio data from mobile device microphone
`camera`	Connection to camera on Android device
`snapshot`	Acquire single image frame from Android device camera

Topics

Get Started with Sensors

Sensor Data Collection with MATLAB Mobile or MATLAB Online
Stream sensor data to MATLAB running in the MathWorks^® Cloud or log data locally.
Sensor Data Streaming Demo
A simple walk-through that demonstrates controlling sensors and acquiring data.
Use Logged Sensor Data Example
This example shows how to plot orientation data using logged sensor data.

Log Sensor Data Locally

Log Sensor Data Locally
Capture sensor data locally to a file on your device.

Stream Sensor Data to MATLAB on the Cloud

Stream Sensor Data with Sensor Controls
Send sensor data to MATLAB running on MathWorks Cloud using MATLAB Mobile sensor controls.
Stream Sensor Data with mobiledev.logging Property
Stream sensor data to MATLAB running on the MathWorks Cloud using the mobiledev.logging property.

Acquire Audio and Images from Device

Acquire Audio Data from a Mobile Device Microphone
Connect to your mobile device microphone and acquire audio signals.
Acquire Images from Android Camera
This example shows how to connect to your Android™ mobile device camera and acquire images from it.
Classify Images from Android Camera Using Pretrained Network
This example shows how to use deep learning to classify images acquired by your Android mobile device camera.

Featured Examples

Acquire and Plot Angular Velocity and Orientation Data from Your Mobile Device

Plot data from multiple sensors on an Android™ or iOS mobile device together in one timeline. Measurements of angular velocity and orientation will be collected from the device and plotted over absolute time. This will allow correlations between data from two sensors to be visualized based on the actual time of measurement.

Open Live Script

Counting Steps by Capturing Acceleration Data from Your Mobile Device

Collect acceleration data from an Android™ or iOS mobile device and use it to count the number of steps taken.

Open Live Script

Logging Accelerometer Data

Manipulate and visualize data coming from a smartphone or tablet accelerometer.

Open Live Script

Acquire GPS Data from Your Mobile Device and Plot Your Location and Speed on a Map

Collect position data from an Android™ or iOS mobile device and display it on a map. Latitude and longitude coordinates are used to mark the device's route. Speed information is used to add color to the route. The final result is a visual representation of location and speed for the device's journey.

Open Live Script