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- Matlab Rs232 Example
- Matlab.com Port
- Force Close Serial Port
- Close All Serial Ports Matlab Software
- Matlab Fclose All
- Matlab Open Com Port
- Instrreset is equivalent to issuing the stopasync (if needed), fclose, and delete functions for all instrument objects. When you delete an instrument object, it becomes invalid. Because you cannot connect an invalid object to the instrument, you should remove it from the workspace with the clear command.
- Jul 11, 2019 In this tutorial, MATLAB is introduced as an interface for data acquisition with an Arduino board. The Arduino, in this particular case, will communicate with a Windows computer via the serial port and send data from an Arduino-compatible sensor, which will subsequently be read by MATLAB.
At this point I have gone through a lot of the forums and have tried instrfindall, clearing MATLAB and running it again, I have double checked that I have the right port, and have also made sure that the alternative software does not have the port open, making it unavailable for MATLAB.
My application reads data from sensors trough an ARDUINO UNO platform and then trough serial port I managed to read all the data that I need in MATLAB. so now I have 3 datas that I want to plot (data, data2, data3) in real time ON THE SAME GRAPHIC.
Matlab Rs232 Example
I also managed to plot one data at a time with some code I found on mathworks and modified it a bit, which does not suit my project.
Here is the matlab code that I'm using to plot one of the data:
Matlab.com Port
I need to plot all the 3 datas (data, data2, data3) on the graphic with different colors. Please help me out here.
3 Answers
I actually used the code from the same source you are for one of my projects. If you still need assistance, here is my modified version of the code I used to plot three data lines from an accelerometer. It plots beautifully. However, because of the time it takes to do fscanf(), you can't obtain and plot a signal in real time faster than every 50ms or so without aliasing.
Use line function to create one more line on the same plot.
From Help->MatLab->Graphics->Handle Graphics Objects->High-Level Versus Low-Level
If you call the line function a second time, MATLAB draws the second line in the current axes without erasing the first line.
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The following guide shows how to open and read fomr a serial port using matlab:
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And it is done like this:
I have a program that continually gets the serial output and plots it:
What i am looking to do is automatically break out of the while loop. But there does not seem to be an easy indication of when the serial has stopped coming through. the fgetl(s) part will wait until something actually comes through. Is there a way to time this out? Is there a better way to do this?
dsolimanoForce Close Serial Port
1 Answer
Close All Serial Ports Matlab Software
You can modify the while loop as follows:
Reference:http://home.iitb.ac.in/~rahul./ITSP/serial_comm_matlab.pdf
Also from personal experience.
Sekkou527Sekkou527Matlab Fclose All
Matlab Open Com Port
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