Monochrome Bitmap Example
[rev. 11/5/2006]

Uncompressed data in binary (12 x 36 pixels = 432 bits):

000000100000000000000000000000001110
000001000000000000000000000001110000
000011000000000000000000001111000000
000011000000000000000001111000000000
000111000000000000011111100000000000
000111000000000111111100000000000000
001111100001111111110000000000000000
001111111111111111000000000000000000
001111111111111100000000000000000000
001111111111100000000000000000000000
001111111110000000000000000000000000
000111111000000000000000000000000000

Can you see the picture in the pattern of 1’s and 0’s?

Next, separate the binary data into groups of 4 bits:

0000 0010 0000 0000 0000 0000 0000 0000 1110
0000 0100 0000 0000 0000 0000 0000 0111 0000
0000 1100 0000 0000 0000 0000 0011 1100 0000
0000 1100 0000 0000 0000 0001 1110 0000 0000
0001 1100 0000 0000 0001 1111 1000 0000 0000
0001 1100 0000 0001 1111 1100 0000 0000 0000
0011 1110 0001 1111 1111 0000 0000 0000 0000
0011 1111 1111 1111 1100 0000 0000 0000 0000
0011 1111 1111 1111 0000 0000 0000 0000 0000
0011 1111 1111 1000 0000 0000 0000 0000 0000
0011 1111 1110 0000 0000 0000 0000 0000 0000
0001 1111 1000 0000 0000 0000 0000 0000 0000

Now, translate into hex (54 bytes total):

02 00 00 00 E0 40 00 00 70
0C 00 00 3C 00 C0 00 1E 00
1C 00 1F 80 01 C0 1F C0 00
3E 1F F0 00 03 FF FC 00 00
3F FF 00 00 03 FF 80 00 00
3F E0 00 00 01 F8 00 00 00

Remember that the protocol may require additional bytes for the header and terminator of the file.