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Sebastian Castro


MathWorks

862 2012 年以降の合計貢献数

Education Technical Evangelist at MathWorks, focusing on robotics student competitions.

Co-host of the MATLAB and Simulink Robotics Arena.

Professional Interests: Education, Robotics, Simulation, Controls, Algorithms, Physical Modeling, Model-Based Design, Computer Vision, Machine Learning, Software Engineering

Non-professional Interests: Running, beer, and heavy metal \m/

Sebastian Castro's バッジ

  • Thankful Level 1
  • 12 Month Streak
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  • Knowledgeable Level 4
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  • Modeling And Simulation Challenge Master
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Custom ROS msg type does not get added to rosmsg list even after MATLAB restart
Hi An, Pretty sure the ROS package requires your .msg file to be inside a subfolder called msg. So your folder structure shoul...

約20時間 前 | 1

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ROS create PointCloud2 from MATLAB pointCloud
Hello Connor, It's almost been a year since you asked, but I just learned about this question! I've written MATLAB and Simulin...

5日 前 | 0

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Difference between Simulink Coder and Embedded Coder
Both Simulink Coder generate C code from Simulink models, and both of them can put that C code in a C++ wrapper to be effectivel...

27日 前 | 2

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arduino uno simulink matlab Simulink does not permit you to modify the MATLAB installation area.
"Please change to a working folder that is not in the MATLAB installation area and re-try the previous command." So... as the e...

約1ヶ月 前 | 0

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Variable resistor in Simscape Specialized Technology
You can build one fairly quickly using the approach discussed here: https://www.mathworks.com/help/physmod/sps/powersys/ug/buil...

約1ヶ月 前 | 0

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is turtlebot 2i also opera table using matlab?
You can control a TurtleBot2 from MATLAB using ROS: https://www.mathworks.com/help/robotics/examples/get-started-with-a-real-tu...

約1ヶ月 前 | 0

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Abc to dq0 transformation
In Simscape Electrical (previously Simscape Power Systems) https://www.mathworks.com/help/physmod/sps/powersys/ref/abctodq0dq0t...

約1ヶ月 前 | 0

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Circular trajectory on Parrot minidrone
If the X trajectory is a sine and the Y trajectory is a cosine, that's a circle! https://www.mathopenref.com/coordparamcircle.h...

約1ヶ月 前 | 0

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Custom activation functions for Deep Learning Toolbox?
Sure you can! Here is an example: https://www.mathworks.com/help/deeplearning/ug/define-custom-deep-learning-layer.html - Seba...

約1ヶ月 前 | 0

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Please suggest me how I can stop the charging of battery at 80% by using simulink?
If you open that switch, those 12A of constant current have no choice but to all go into the battery, so it makes sense that it ...

約1ヶ月 前 | 0

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How to use MATLAB open the baxter robot's cameras?
The joint commands require publishing to the topic, as it's actuators. Cameras are sensors, so they would require subscribing to...

2ヶ月 前 | 1

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Problem with the .mltbx toolbox file in Matlab 2018a
I think this is because you're trying to install this on a folder that requires admin/root access. Try moving the .mltbx file s...

3ヶ月 前 | 0

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Unable to connect rotational elements to lever block in simscape
The Lever block accepts 2 Translational ports, so the Rotational ones won't directly connect. In your diagram, this means you ca...

4ヶ月 前 | 0

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Simulink - Constant as an argument to a MATLAB function block
Unfortunately, this is a documented limitation: <https://www.mathworks.com/help/signal/ref/upfirdn.html#d120e192101> (expand ...

4ヶ月 前 | 0

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Error in determining the root folder
If you want the name of the current folder >> folderName = pwd; If you want the name of the file containing the MATLAB s...

4ヶ月 前 | 0

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What to use for Semantic Segmentation
You can start with premade neural network architectures. The following example does this with the VGG-16 architecture: <https...

4ヶ月 前 | 0

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Defining time on Ev3 Robot in matlab
If you're using the MATLAB - LEGO interface, then you're not really deploying any code, right? If so, then I would recommend usi...

4ヶ月 前 | 0

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Measurement data as source for Simulink model
Try a "From Workspace" block: <https://www.mathworks.com/help/simulink/slref/fromworkspace.html> Or in general, you can e...

4ヶ月 前 | 0

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Is it possible to pass outputs from one model to be the inputs of another model using simulink?
You could try model referencing to connect these two models inside one bigger "parent" model. It's a very common thing when you ...

4ヶ月 前 | 1

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please what are the names of the different types of neural network available in matlab?
There are for sure Convolutional and Recurrent Neural Networks in release 2018b of MATLAB. * Convolutional: <https://www.math...

4ヶ月 前 | 0

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This function does not fully set the dimensions of output port 2 error in matlab?
Hi Najmeh Eskandari, I would highly recommend running this code in MATLAB and debugging it yourself. I just did the same and ...

4ヶ月 前 | 0

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i made a quarter car suspension using simulink . but the output is always 0. why? i need help!
You either need a forcing function or some nonzero initial conditions in the Integrator blocks... otherwise, you should expect t...

4ヶ月 前 | 1

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Converting double array to struct array for generalized inverse kinematics
Instead of converting back and forth, it's easier to stick to a consistent format -- either all structs or all numeric. If yo...

5ヶ月 前 | 0

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show command from robotics
Yes -- you have to disable the |PreservePlot| property as follows: show(robot,qWaypoints(k,:)','PreservePlot',false); - ...

5ヶ月 前 | 0

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How can i send image using UDP in Matlab code ?
If you have Instrument Control Toolbox, you can use this functionality: <https://www.mathworks.com/help/instrument/tcp-ip-and...

5ヶ月 前 | 0

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how to create topic ?
With |rospublisher|: <https://www.mathworks.com/help/robotics/ref/robotics.publisher.html> - Sebastian

5ヶ月 前 | 2

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Why should I choose matlab deep learning toolbox over other opensource frameworks like caffe, onnx, pytorch, torch etc?
This is a fun and tough question... *DISCLAIMER: Even though I currently work at MathWorks, I am answering with my personal o...

5ヶ月 前 | 8

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import robot as a rigidbody tree from simscape model
Actually, if you look at the Robotics System Toolbox release notes, the ability to use |importrobot| on a model is only out in R...

5ヶ月 前 | 0

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Trouble Coding Kinematics Problem
You probably want to convert from degrees to radians, since the |sin| and |cos| functions accept radians. That, or you can us...

5ヶ月 前 | 0

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Plotting quadratic f(t) = t^3
Yes. % 1001 samples from -2pi to 2pi t = linspace(-2*pi, 2*pi, 1001); % Element-wise multiplication f = t.^3; ...

5ヶ月 前 | 1

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