How can I do to break this while loop with the keyboard?

I am working with the Matlab data acquisition toolbox. I have this code that generates a real-time graph of the data that the DAQ system acquires. I want to make the while loop stops when the user wants it, but I don't know how to do it. How can I modify my code to allow the user to control when to stop the test by pressing a button or ussing a specific command?

clear all
clc

% Data Acquisition Toolbox Analog Input Recorder 
% Create DataAcquisition Object
% Create a DataAcquisition object for the specified vendor.
d = daq("mcc");

% Add Channels
% Add channels and set channel properties, if any.
addinput(d, "Board0", "Ai0", "Voltage");

% Set DataAcquisition Rate
% Set scan rate.    
d.Rate = 9;

% Create figure for the real-time plot
figure;
plotHandle = plot(NaN, NaN);
xlabel("Time (s)");
ylabel("Amplitude");
legend("Channel 1", "Interpreter", "none");
title("Pull Out test");

% Create text box for real-time values display
valueText = annotation('textbox', [0.15, 0.75, 0.2, 0.1], 'String', 'Value: N/A kg', 'FitBoxToText', 'on');

% Initialize variables
sampleCount = 0;
dataValues = [];

% Start the data acquisition
start(d);

% Main loop for real-time data acquisition and plotting
while ishandle(plotHandle)
    % Read Data
    data = read(d, seconds(0.5)); % Read data for 0.5 second
    
    % Update plot
    if ~isempty(data.Time)
        % Increment sample counter
        sampleCount = sampleCount + length(data.Time);
        
        % Update data values
        dataValues = [dataValues, data.Variables'];
        
        % Generate time values based on sample count and rate
        timeValues = (1:sampleCount) / d.Rate;
        
        set(plotHandle, "XData", timeValues, "YData", dataValues);
        xlim([timeValues(1), timeValues(end)]);
        drawnow;
        
        % Update real-time values display
        if ~isempty(dataValues)
            current_value = dataValues(end);
            set(valueText, 'String', sprintf('Value: %.5f kg', current_value));
        end
    end
    
    % Pause for half a second before the next iteration
    pause(0.1);
end

Answer 1

[Bruno Luong]

Try this

test

function test
fig = uifigure();
ax = uiaxes('Parent', fig);
h = plot(ax, NaN);
stop = false;
    function setstop(varargin)
        stop = true;
    end
b = uibutton(fig, 'text', 'stop', 'ButtonPushedFcn', @setstop);
for i = 1:Inf
    set(h,'YData', sin(linspace(0,2*pi)-i/10));
    pause(0.03);
    if stop
        break
    end
end
end

[Otman]

Thank you so much! This answer was so helpful for me!!