The above circuit diagram will remain same for both the ways to establish serial communication between MATLAB and Arduino.Serial Communication using MATLAB Command WindowThis is the simple method to setup serial communication between Arduino and MATLAB. Here we will simply send the data from MATLAB to the Arduino serially using command window and then Arduino read the incoming serial data.
Then this serially transmitted data can be used to control anything connected to the Arduino. Here we have connected an LED to Arduino, that will be turned on and off according to the serially received data by the Arduino.First, upload the given Arduino code in the Arduino UNO and then start coding in MATLAB Editor Window. To open a new editor script click on ‘ New Script’ as shown in below image:Then, copy and paste the below complete MATLAB code in the editor window for serial communication between MATLAB and Arduino.%MATLAB Code for Serial Communication between Arduino and MATLABx=serial('COM18','BAUD', 9600); fopen(x); go = true; while go a= input('Press 1 to turn ON LED & 0 to turn OFF:'); fprintf(x,a); if (a 2) go=false; end endIn the given code, below command is used for defining the serial communication in MATLAB. Make sure the com port number is the port number on which Arduino is connected and the baud rate should be set same in the both the codes of Arduino and MATLAB.
Bluetooth Serial Connection Matlab Plot Pdf
X=serial('COM18','BAUD', 9600);To open serial port use the below command, fopen(x);Below command is used to send data from MATLAB to Arduino serially, where x is for calling serial and a is the value entered by the user. Fprintf(x,a);We have use while function for creating an infinite loop and whenever the user input the number ‘2’ the loop will break. I would put in some error handling for that input request.
It would be easy enough to filter out unwanted values (if 0 or 1., if 2., else.end, or something along those lines). I also find it helpful to state all options at the input line; i.e.
Matlab Serial Port
Parallel Connection
Include a statement about needing to press 2 to escape the loop.Also, newer versions of MATLAB have what's called the App Designer which makes the task of creating a GUI much easier and straightforward (no shortcutting to globals required!).Thanks for writing this tutorial, all the same.