Is there any way to read ambient light values from android or iPhone to matlab?

Unfortunately Android and iPhone support package does't do this and I need to read the lux values from Ambient light sensor to Matlab in realtime.

Answer 1

[Amish]

Hi Sara,

To read lux values from the ambient light sensor on your mobile device in real-time into MATLAB, you can use the Simulink Support Package for Android Devices or iOS Devices.

For Android Devices, you will need to follow the following steps:

Install Simulink Support Package: Ensure you have the Simulink Support Package for Android Devices installed. You can install it from the Add-Ons menu in MATLAB.

Use the Light Sensor Block: In Simulink, use the Light Sensor block from the Simulink Support Package for Android Devices. This block measures ambient light in lux (lx) from the light sensor on your Android device.

Configure the Block: Set the sample time to define how frequently the sensor reads the light values.

Deploy the Model: Deploy the Simulink model to your Android device to start reading the ambient light values in real-time.

For iOS Devices, you will need to follow the following steps:

Install Simulink Support Package: Ensure you have the Simulink Support Package for Apple iOS Devices installed.

Use the Sensor Blocks: Similar to Android, use the appropriate sensor blocks available in the support package to read ambient light values.

Configure and Deploy: Configure the blocks and deploy the model to your iOS device.

If you prefer using MATLAB Mobile, you can access sensor data, but it might not directly support lux values from the ambient light sensor. Instead, you can use the sensorgroup function to access available sensors and read their data.

Here’s a basic example of how you might set up the Light Sensor block in Simulink for an Android device:

% Create a Simulink model
model = 'lightSensorModel'; 
open_system(new_system(model)); 
% Add Light Sensor 
blockadd_block('androidlib/Sensors/Light Sensor', [model, '/Light Sensor']); 

% Set sample time 
set_param([model, '/Light Sensor'], 'SampleTime', '0.1'); 
% Deploy to hardware
set_param(model, 'HardwareBoard', 'Android Device'); 
deploy(model); 

For more detailed instructions, refer to the MathWorks documentation on the Simulink Support Package for Android Devices:

https://www.mathworks.com/help/simulink/supportpkg/android_ref/lightsensor.html

Hope this helps!