How can I communicate with a BLE device in Simulink?

communicate - 2021-09-03T10:58:02+00:00

Question: How can I communicate with a BLE device in Simulink?

I would like to communicate with a BLE (Bluetooth low energy) device in Simulink. However, I found no BLE blocks in the Simulink library. Is this supported?  

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Expert Answer

John Williams answered . 2025-11-20

function y = fcn()    
    persistent b;    %automatically initialized to []
    persistent hr;   %automatically initialized to []

      %%extrinsic declarations
      coder.extrinsic('ble');
      coder.extrinsic('characteristic');
      coder.extrinsic('read');
      if(isempty(b))
          b = ble("UA E39 MODULE");
          hr = characteristic(b, "heart rate", "heart rate measurement");
      end

      %%initialize output
      y = zeros(...)
      %%read data from BLE device
      data = read(hr);
      %%post-process the data
      y = ...
  end

Note that the 'ble'-related functions do not support code generation and therefore need to be declared as extrinsic.

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