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external trigger to initiate script commands

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I'm wanted to use an external device to trigger my script. I have limited experience with Simulink so I'm not sure if that is the right system to use. Ideal, once something sets off the trigger, I want it to run my code.

Accepted Answer

Piyush Kumar
Piyush Kumar on 18 Jun 2024
There are several ways to approach this problem, depending on the complexity of your project, the external device you're planning to use, and the environment (like MATLAB/Simulink) you're comfortable with. Simulink is powerful for model-based design and can interact with hardware.
1. MATLAB Script with Hardware Support Package - If your external device is supported by MATLAB (e.g., Arduino, Raspberry Pi, webcams, etc.), you can use MATLAB directly to listen for the trigger and then execute your script. MATLAB supports various hardware through its support packages, allowing for direct communication with the hardware.
  • Install the appropriate support package for your device (via Add-Ons > Get Hardware Support Packages).
  • Use the device's API within MATLAB to poll or listen for the trigger event.
2. Simulink Model with External Device - Simulink can also be used, especially if your project involves real-time systems or complex signal processing before triggering the script. Simulink supports various hardware devices and can be used to create a model that responds to external inputs.
  • Open Simulink and create a new model.
  • Install the necessary hardware support package for your device.
  • Use the blocks provided by the support package to interface with your device.
  • Implement logic to detect the trigger event.
  • Once the event is detected, you can use the MATLAB Function block to run your MATLAB script.
For example, to use webcams with MATLAB script, refer the following documentation. If you want to use your simulink model to interact with android devices, you can go through the link.
  2 Comments
Siena Senatore
Siena Senatore on 18 Jun 2024
this is super helpful, thank-you! how can i find out if a device is compatible with Simulink? I have a Lafayette Instrument Co. Timing Gate System Model 63501IR?
Piyush Kumar
Piyush Kumar on 19 Jun 2024
You can check the supported hardwares on this link.

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