fscanf question with Arduino

I need to know how I can control the amount of Serial.println(variable_1) methods that get read during the fscanf() execution.

This is the code:

arduino = serial('COM4');

fopen(arduino);

x = 1:1:60;

for i=1:length(x)
    y(i) = fscanf(arduino, '%d');
end

fclose(arduino);

%  Plot data from arduino
plot(x,y)

If my Arduino sketch has multiple Serial.println() it seems to combine the variables within the Serial statements in the same vector. Is it possible for them to be separated?

Answer 1

[Walter Roberson]

fscanf(arduino, '%d', 1);

[Darryl]

Thank you for your help.

Say if I did have 2 serial print statements in my arduino sketch, would it be possible to skip the first one that I asked about prior and read a second output. Or even better be able to choose between the two statements as I could write some code like this:

for i=1:length(x)
    y(i) = fscanf(arduino, '%d', % read serial print 1);
    z(i) = fscanf(arduino, '%d', % read serial print 2 );
end

Then I could plot a 3d graph for my dht11 temperature and humidity sensor, and it would save me uploading separated sketches for the arduino.

[Walter Roberson]

y(i) = fscanf(arduino, '%d', 1);
z(i) = fscanf(arduino, '%d', 1);

if you want to read both of them. Or, more efficiently,

t = fscanf(arduino '%d%d', 1);
y(i) = t(1);
z(i) = t(2);

[Darryl]

Thank you very much indeed. Much appreciated, will try that tomorrow.

Answer 2

[Kristian Cvetkov]

How I can write data on my Arduino, after I read them in Matlab?