When it gets 50 diamonds or more, I'll upload a MCSchematic and a World Save.

Basically. Its not as advanced as the ASCII but the levers determine the letter which is show by redstone torches.
This has taken me 3 days with about 12 hours sleep.
Basically the whole structure is built into 3 parts.
-The Memory
-The Decoder
-The Signals
This whole thing works so please give me diamonds!

AMDLM
(AeroMcDoom's Letter Machine)

-Aero!

Additional Notes

This was prompted into my head by the ASCII but never got round to doing it until MrMinecraft_01 showed me 1 little piece. I mean little. Then I did the rest!