i am try to get the 4 sensors data from a serial port and my data lies in 13,15,17,19 bytes of a packet .I want to plot the data of each sensor in real time but i am facing problem even though one sensor is giving maximum output i couldnt see it i

%run('clean');
clear all;

close all;

delete(instrfindall);

s = serial('COM5'); %assigns the object s to serial port

set(s, 'InputBufferSize', 512); %number of bytes in inout buffer

set(s, 'BaudRate', 115200);
%set(s, 'Timeout',10);
%clc;

fopen(s);           %opens the serial port

t=1;

disp('Running');

x=0;

y=0;

z=0;

w=0;

while(true)  
   a1 =fread(s); %reads the data from the serial port and stores it to the matrix a

     s1=a1(13);
     a=(s1-175)/80;
     x =[x a];% Merging the value to an array, this is not very computationaly effective, as the array size is dynamic.
     plot(x,'Color','g');
     axis auto;
     grid on;
     hold on;
     drawnow;
     s2=a1(15);
     b=(s2-166)/89;
     y =[y b];
      plot(y,'Color','y');
     axis auto;
     grid on;
      hold on;
      drawnow;
     s3=a1(17);
     c=(s3-168)/87;
     z =[z c];
     plot(z,'Color','r');
     axis auto;
     grid on;
      hold on;
      drawnow;
     s4=a1(19);
     d=(s4-166)/89;

     w =[w d];

      plot(w,'Color','b');
     axis auto;
     grid on;
     t=t+1;
     drawnow;
     %a1=0;  %Clear the buffer

end

fclose(s); %close the serial port

[avinash pabbireddy]

@walter roberson

[avinash pabbireddy]

anyone please help??

[Walter Roberson]

which sensor? How do you know it is giving the maximum value?

By the way, my house elves get all of March off to go skiing, so I have to do my own grocery shopping, leaving me out of contact sometimes.

[avinash pabbireddy]

i am using flexi force sensor and i am applying max force 1N