showLEDs

R2026b

Show location, name, and color of user-controllable LEDs

Syntax

showLEDs(mypi)

Description

showLEDs(mypi) displays the location, name, and color of the user-controllable LEDs on the current board.

Note

To generate C/C++ code for this function, you must have an Embedded Coder^® license.

Examples

Control the On-Board LED

You can locate and control the on-board LED, turning it on and off.

Create a connection from the MATLAB^® software to the Raspberry Pi^® board.

mypi = raspi

mypi = 

  Raspi with Properties:

           DeviceAddress: 'raspberrypi-hysdu8X38o'
                    Port: 18725
               BoardName: 'Raspberry Pi Model B Rev 2'
           AvailableLEDs: {'led0'}
    AvailableDigitalPins: [4 14 15 17 18 22 23 24 25 27 30 31]
    AvailableSPIChannels: {}
      AvailableI2CBuses: {'i2c-0'  'i2c-1'}
             I2CBusSpeed: 100000

  Supported peripherals

The AvailableLEDs property shows the name of the user-controllable LED.

Show the location of the user-controllable LED on the board.

showLEDs(mypi)

Turn on the specified LED by setting its value to 1 or true.

writeLED(mypi,'led0',1)

Turn off the LED by setting its value to 0 or false.

writeLED(mypi,'led0',false)

Restarting the Raspberry Pi hardware returns the LED to its previous function as an activity indicator.

Input Arguments

mypi — Connection to Raspberry Pi hardware board

raspi object

Connection to the Raspberry Pi hardware board, specified as a raspi object.

Extended Capabilities

C/C++ Code Generation

Generate C and C++ code using MATLAB® Coder™.

• You can deploy showLED on the Raspberry Pi hardware in MATLAB Online™.

• To generate C/C++ code for this function, you must have an Embedded Coder license. For more information on selecting the right product stack according to your development goals, see Product Stack for Raspberry Pi Blockset.

Version History

Introduced in R2015b