%% MATLAB Code for Serial Communication between Arduino and MATLAB

%% INITIALIZE THE SERIAL CONNECTION WITH ARDUINO
if ~isempty(instrfind)
fclose(instrfind);
delete(instrfind);
end

x=serial('COM3','BAUD', 9600);

fopen(x);
go = true;

%% TO PRINT OUT THE BEAT OF A SONG
 
sound(d,r);

pause(0.200); % Need to play around with this value to get the desired pause


for n = 1:length(intensity)
   pause(0.0999); % Need to play with this value
   fprintf(x, '%s\n', intensity(1,n));
end


%% TO PRINT OUT A SIN WAVE

% t = linspace(0,500,2000);
% y = 255.*(sin(0.406.*t) + 1)./2;
% y = fix(y);

% tic;
% for n = 1:length(t)
%     y(1,n);
%     %fprintf(x,'%i',y(1,n));
%     fprintf(x,y(1,n));
%     pause(0.001);
% end
% toc;

%% TO PRINT OUT A CUSTOM INTENSITY THRU SERIAL

% while go
%                  
% a= input('Enter an intensity from [0,255]'); 
% 
% %  if (a <0 || a>255)
% %    go=false;
% %  end
%  
%  g = sprintf('%s', 'g', a);
%  fprintf(x,g); 
% end