How to code a stopwatch in MATLAB App designer

In this video a show you how to code as simple stopwatch in MATLAB App designer. Just shared the thought process i went through to make this. i have coded it a while back and today i just had to think a bit to remember what i did before.

The work load becomes so huge these days that basically nothing moves forward. So to laugh at the life pressure I decided to make a new video. Dear life, if you are going to challenge me with a lot of pressure, I am going to accept the challenge and add some more on to of what you have for me.


Finance:
N=8, subs=190
Available budget (N):
190-100-8*(8+1)=18
Storage limit:
2^ln(190)=37.97




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The code:
You must place its part under right functions/properties
%%%%%%%%%%%%%%%%%

   properties (Access = private)
       a=1; % Description
   end
%%%%%%%%%%%%%%%%%

       function startupFcn(app)
           app.EditField.Value='00:00:00'
           app.EditField.FontSize=40;
       end

%%%%%%%%%%%%%%%%%

function STARTButtonPushed(app, event)
S_ini=0;
if strcmp(app.STARTButton.Text,'CONTINUE')            
st=app.EditField.Value;
h=0;m=0;s=0;
for i=1:size(st,2)
   if strcmpi(st(i),':')
       break
   end
   h=[h st(i)];
end
for i=i+1:size(st,2)
   if strcmpi(st(i),':')
       break
   end
   m=[m st(i)];
end
for i=i+1:size(st,2)
   if strcmpi(st(i),':')
       break
   end
   s=[s st(i)];
end
S_ini=str2num(h)*3600+str2num(m)*60+str2num(s);
     app.STARTButton.Text='START';
     app.STOPButton.Text='STOP';
end                    
c=clock;
m=0;
S_tot=0;
app.a=0;
while app.a==0
   c1=clock;
   if c1(5)~=c(5)
       S_tot=c1(6)-c(6)+60;
       m=m+1;
       c(5)=c1(5);
   else
    S_tot=c1(6)-c(6)+60*m;
   end
   S_tot=S_tot+S_ini;
   A(1)=floor(S_tot/3600);
   A(2)=floor((S_tot-A(1)*3600)/60);
   A(3)=S_tot-A(1)*3600-A(2)*60;
   app.EditField.Value=sprintf('%02.0f:%02.0f:%02.2f',A(1),A(2),A(3));
%     app.EditField.Value=[num2str(A(1)) ':' num2str(A(2)) ':' num2str(A(3))];
%     app.EditField.Value=num2str(S_tot);
   pause(0.01);
end
       end

%%%%%%%%%%%%%%%%%

function STOPButtonPushed(app, event)
 if strcmpi(app.STOPButton.Text,'RESTART')
     app.EditField.Value='00:00:00';
     app.STARTButton.Text='START';
     app.STOPButton.Text='STOP';
   return  
 end
 if app.a==0
app.a=1;          
app.STARTButton.Text='CONTINUE';
app.STOPButton.Text='RESTART';
 end
       end

• #science_technology
• #stopwatch
• #app_designer
• #matlab
• #matlab_app_designer
• #stop_watch