How to read a variable from Arduino or a PWM value from Arduino in Matlab

Hi Mathworkes

I made an RC using nrf24l01 and Arduino and now I need to see what the transmitting Arduino send as a information to my receiver. In Arduino IDE I use:

radio.read(&data, sizeof(MyData));

my data are:

struct MyData {
  byte latitude;
  byte longitude;}

I use this to acquire the information that I receive and, in the same code, I transform that in PWM values to control motors.

Is it any method to read this values em Matlab? I need it to create a control system.

I'm really grateful for you help.

Answer 1

[Mahesh]

Establish the serial communication between Arduino and MatLab. So that you can read and use the values for creating your control system. For example:

 //From your Arduino end, send the data
 serial.begin('Baud rate')
 if (serial.available())
     serial.print('Mydata');
end

%% MatLab end, receive the data

ser=serial('Com port ', 'Baud rate')
fopen(ser);
output = fscanf(ser);
fclose(ser);
delete(ser);

[Szillat]

It works but the bad thing which that is that I can only read one information. for example, if I like to read more then 'Mydata' I need to hide something.

[Mahesh]

Something you could do like this to read all the data until you close the serial connection

   result=[];
    if ~isempty(output)
    result=[result;output];
    end