How to plot a graph with x and y axis input live from two hardware (arduino and laser gauge- UART)

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Mohammed Ammad 2022-11-13

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1849523-how-to-plot-a-graph-with-x-and-y-axis-input-live-from-two-hardware-arduino-and-laser-gauge-uart

评论： Walter Roberson 2022-11-13

Hi,

I'm a newbie to matlab. I'm trying to plot a graph where realtime data is received from a laser gauge using serial input (FT232), and pressure reading from a sensor using arduino. I tried to interface both the hardware to arduino but it wasn't an option recommended by the tech for the laser gauge and wasn't working.Serial signal was verified to work with tera term. Now I built up a code to receive that in matlab. I would like some help on how to now integrate that code to plot where the x axis is the source from arduino.

%
close all; 
%serial object
s = serialport('COM4','BaudRate',9600);
% open serial port
fopen(s);
%plotting data
i=1;
while (1)
    data (i) = str2double(fscanf(s));
    if i <= 150
        plot(data);
    else
        plot(data(end-150:end));
        ylim([0 5]);
        pause(0.01);
        i=i+1;
    end