I am getting this error -not declared in this scope...

Projects Programming
1

Hello,
First, look to my username... Then help me. Thats the problem, I am trying to program Led matrix to get graphics, but unfortunetely I am getting this error. So here's my sketch and error so please,
could you recommend me what libraries should I include, or is there another serious problem ?

The main code:

#include <Arduino.h>


byte* CharToBytes(char str)
{
  byte* r=  specialchars1[0];
  if(str>=65&&str<=90)
  {
    r=alphabet[(str-65)]; 
  } 
  if(str>=97&&str<=122)
  {
    r=lower[(str-97)]; 
  } 
  if(str>=48&&str<=57)
  {
    r=numbers[(str-48)]; 
  } 
  if(str>=32&&str<=47)
  {
    r=specialchars1[(str-32)]; 
  } 
  if(str>=58&&str<=64)
  {
    r=specialchars2[(str-58)]; 
  } 
  return r;
}

Error...

Graphics.cpp: In function 'byte* CharToBytes(char)':
Graphics.cpp:7:28: error: invalid types 'int[int]' for array subscript
   byte* r=  specialchars1[0];
                            ^
Graphics.cpp:10:7: error: 'alphabet' was not declared in this scope
     r=alphabet[(str-65)]; 
       ^
Graphics.cpp:14:7: error: 'lower' was not declared in this scope
     r=lower[(str-97)]; 
       ^
Graphics.cpp:18:7: error: 'numbers' was not declared in this scope
     r=numbers[(str-48)]; 
       ^
Graphics.cpp:22:29: error: invalid types 'int[int]' for array subscript
     r=specialchars1[(str-32)]; 
                             ^
Graphics.cpp:26:7: error: 'specialchars2' was not declared in this scope
     r=specialchars2[(str-58)];

Thank you for your wasted time.

3

Yes, I have created all the arrays for this... I have already sent you my whole code straight to your PM message.

6

Hello guys,
so here is my whole program.

I have created all arrays named like, but I think I am not included some of the libaries which I don't know. if you have some free time please download this and see why I am getting this error? I thuogh that I made everything nice and clear...

8x8 matrix.zip (4.83 KB)