Minecraft Wiki

Automatic distress call (button activated)[]

.  .            .
.  V            .
.  SSTSSTTSTS <.. ...
.  T       { T  R . .
R  S       R S  . . V
.          . ^  .
.          : .  .

S = Solid block; T = Transparent block; R = Repeater; . = Wire;
< > ^ V = Piston; : = Wire on top of block; { = RS Torch;
B = Repeater on top of block; I = Input; O = Output

Once started, the loop must be broken by hand, and will send the Morse code message ...---... (SOS). Letters are separated by two blocks (8 ticks), message repeats 12 ticks after finishing. The size can probably be reduced, but this is simple enough to construct and will loop until the chunk is unloaded or manually stopped.
Skyboy 08:30, 10 July 2012 (UTC)

my thingy[]

Made an M(inecraft)E-Mail system using a keyboard and lights, labeled by signs. (Everyone had 26 (each)trees cut down due to the high wood amount needed!) 15:51, 9 December 2012 (UTC)

Practical Uses[]

This page looks like it hasn't been touched since the creative inventory didn't have tabs, but the fact that you are reading this means it's not as forgotten as I thought. Anyway, the main use I see in creating a telegraph system is that your communication will be completely unreadable, even by admins with access to chat logs, or the ability to scan for all text stored in books or signs. Intercepting the message requires being aware that it's happening and where at the time of transmission. Or you could just DM the other person on Discord, but that's no fun. 07:34, 26 March 2020 (UTC)