Timed excel loop for serial port

I am trying to create a MATLAB program using an excel sheet with 500 values below 10, and 500 values above 10, a total of 1000 values. I need the program to read the values in a 10 second loop. Every time it reads values below ten it should send a signal of "1" to the serial port, and every time it reads the values above 10 it should send a signal of "0" to the serial port. How should I write this?

Answer 1

[Walter Roberson]

num = xlsread('YourFile.xls');

s = serial('COM1');
fopen(s);

for K = 1 : length(num)
  thisval = num(K);
  signaltosend = 1;
  if thisval > 10; signaltosend = 0; end
  fwrite(s, signaltosend, 'uint8');
  pause(10);
end

fclose(s);

If you need '1' and '0' instead of 1 and 0, then the change is straight-forward.

Answer 2

[Avichal]

Thanks! It worked!