I have on my arduino a 50x50 2d array that needs to be send to the computer using processing, the idea is that the bluetooth device hooked on the arduino is always on and when processing starts it should request for data.

So I started with the following code:

1. byte imageArray[50][50] = ( some big data containing 0 or 1 for white or black, not include because to huge).
2. void setup()
3. {
4.   Serial2.begin(9622);
5.   pinMode(13, OUTPUT);
6. }
7. 
   
8. 
   
9. void loop() {
10.   // lets first start a handshake
11.   // we first need to recieve code 121
12.   if(Serial2.available() > 2) {
13.     int code = Serial2.read();
14.     if(code == 121) {
15.       //allright a request has been made, lets now send the sending code 122 back
16.       Serial2.write(122);
17.       // greate now lets start sending some image
18.       for(int i = 2; i < 52; i++) {
19.         for(int j = 2; j < 52; j++) {
20.           Serial2.write((int)imageArray[i][j]);
21.         }
22.       }
23.       //data send, let the other party know
24.       Serial2.write(123);
25.       digitalWrite(13, HIGH);
26.     } else {
27.       digitalWrite(13, LOW);
28.     }
29.   }
30. }

And this totally doesnt work at all, anyone has a better solution? I feel im doing wrong things here.

Thanks