Lego mindstorms NXT support package

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Nauman
Nauman 2014-10-14
编辑： Daniele 2022-10-14
Does the MATLAB student package come with Lego Mindstorms NXT support package? If no, how can i install it please?

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Mischa Kim
Mischa Kim 2014-10-14
编辑：Mischa Kim 2014-10-14
Nauman, in MATLAB simply go to Resources > Add-Ons > Add Hardware Support Packages, select and download the NXT package for free.
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Mischa Kim
Mischa Kim 2014-10-14
The LEGO MINDSTORMS NXT Support from Simulink is available on 32-bit and 64-bit Microsoft Windows only. See the documentation (bottom of page).
Nauman
Nauman 2014-10-14
Oh! Thanks a lot for your help.

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Daniele
Daniele 2022-10-14
编辑：Daniele 2022-10-14
Hi Nauman
You can download the RWTHMindstormsNXT library from:
MATLAB/toolbox/RWTHMindstormsNXT/README at master · robEllenberg/MATLAB · GitHub
Some small tuning is necessary (at least on my PC, with Matlab 2022a installed) after having correctly paired between PC and Lego NXT, and having identified the outgoing COM port used by the SPP (in my case COM6).
I naturally installed the original software provided by Lego to check that the robot was properly connected to the PC and working.
Here are the changes.
1. Function “COM_OpenNXTEx.m”
Use the "serialport" Matlab function instead of the "serial" function that will be removed in future releases of Matlab.
Using "serialport" the serial connection speed no longer wants the specification through the pair 'Name', 'Value', but only wants a double value (Value), the baudrate: you must therefore remove 'BaudRate' label.
2. Function “checkHandleStruct.m”
Update the type (class) of the h.Handle variable from 'serial' to 'internal. Serialport'.
Finally disable the warnings at the beginning of each user program (script):
warning('off','all')
These small changes in my case worked. Finally, after countless attempts, I was able to reproduce a tone and read the battery status of my NXT from Matlab! (And also to control the engines ... ).
Bye

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