A character code invented by Samuel Morse that is represented by the duration of a single tone. Written as dots, dashes and spaces, the first Morse code message was sent in 1844 over a newly ...

An Arduino converts Morse code characters tapped at the key into keystrokes over USB. As [voxnulla] knows, when butterflies aren’t available, real programmers drive vim with a Morse key!

A typical case for type used by printers (public domain) As you may have noticed, the length of Morse code characters is inversely proportional to their frequency in English. That is ...