Hello,

I am new to programming and would appreciate your help to solve and understand the following problem:

1. Existing 1D array -> temperatures[i]  This array has 64 elements, of data type float, created in an Arduino sketch.  I have verified that this sketch is function properly in a sketch that reads the temperatures sensed by a 4 x 16 array IR sensor.  E.g. I can watch the temperatures of elements in the 4 x 16 array change using the Arduino's serial monitor.

2. I need assistance to do the following:

In the Arduino sketch that creates temperatures[i], I need to convert the 1D temperatures[i] array to a 4 x  16 element 2D array.  The 2D array is used by a Processing sketch that draws a 4 x 16 matrix on the PC monitor.

3. As a test, the Arduino sketch below successfully does the following: It creates the fixed element values of 0 through 63, communicates these values via the serial interface to the Processing sketch, which are then used by the Processing sketch to display them as a 4 x 16 matrix on the PC's monitor.

      My question:  How do I modify the sketch below to cause the Processing sketch to draw the elements of temperatures[i] as a 4 x 16 matrix on the PC's monitor?

2. //Prints an array string of temperatures formatted for use as input to Processing: Collecting_and_storing_information_Learning_2_4x16_Processing_4 
3. //Each element is separated with a '\t', each line is separated with a '\n', and the array ends with '!'
4. // '\t', '\n' and '!' are required by the Processing sketch.
5. 
   
6. //define the size of array
7. #define ARRAYi 4 // i
8. #define ARRAYj 16 // j
9. //create the array
10. int sensorArray [ARRAYi][ARRAYj];
11. int i,j,x;
12. 
    
13. 
    
14. void ProcessingPrintTemperatures_1() {
15. 
    
16. if (x>63)
17. {
18. x=0;
19. }
20. for (i=0;i<ARRAYi;i++)
21. {
22. for (j=0;j<ARRAYj;j++)
23. {
24. sensorArray[i][j]=x;
25. x++;
26. }
27. }
28. sendArray();
29. delay(500);
30. }
31. 
    
32. 
    
33. void sendArray ()
34. {
35. for (i=0;i<ARRAYi;i++)
36. {
37. for (j=0;j<ARRAYj;j++)
38. {
39. Serial.print(sensorArray[i][j]);
40. Serial.print('\t'); //tab character
41. }
42. Serial.print('\n'); //new line c
43. }
44. Serial.print('!');
45. }
46. 
    
47. //--------------------------

      Thanks for your help,

Bob

Thanks, Bob