how to draw real time plot in guide matlab

i wrote simple code for read analog pin in arduino and plot the signal and i want to wrote simple code in GUI. i want to do just simple pushbutton and signal figure in side of it. when i clik pushbutton i want it to draw. how can i do this ?

help me please

here is my code;

clc; close all; clear all;
delete(instrfind(('Port'),('COM5')));
a=arduino('COM5');

tic;
i=0;
while toc<150
    i=i+1;
    time(i)=toc;
    v(i)=readVoltage(a,'A0');

      plot(time,v,'r')
      drawnow
  end

Answer 1

[Walter Roberson]

Delete that first line, the clc and so on. Put the rest within a callback of a uicontrol. See GUIDE to create a simple GUI

[halil isik]

ok how can i get 'toc' value from edit text

[Walter Roberson]

howlong = str2double(get(handles.edit1, 'String'));

while toc < howlong
  ...
 end

[halil isik]

thanks for your helps :) but i want to ask one more thing.

how can i change plot color with listbox ?

i tried this in callback but did not work.

ciz_renk=get(handles.listbox1,'value');
switch ciz_renk
    case 1
        set(hline,'color','b');
        case 2
        set(hline,'color','r');
        case 3
        set(hline,'color','g');
end

[Walter Roberson]

That should work as long as hline is the line handle and you make the change after you draw the line.