Braille pattern dots-15 Braille pattern dots-15 The Braille pattern dots-15 ( ) is a 6-dot braille cell with the top left and middle right dots raised, or an 8-dot braille cell with the top left and right upper-middle dots raised. It is represented by the Unicode code point U+2811, and in Braille ASCII with E. In unified international braille, the braille pattern dots-15 is used to represent unrounded, near-mid, front vowels, such as /e/ or /ɛ/. It is also used for the number 5. Related to Braille pattern dots-15 are Braille patterns 157, 158, and 1578, which are used in 8-dot braille systems,
Morse code applications. Morse code Morse code is a character encoding scheme used in telecommunication that encodes text characters as standardized sequences of two different signal durations called "dots" and "dashes" or "dits" and "dahs". Morse code is named for Samuel F. B. Morse, an inventor of the telegraph. The International Morse Code encodes the ISO basic Latin alphabet, some extra Latin letters, the Arabic numerals and a small set of punctuation and procedural signals (prosigns). Each Morse code symbol is formed by a sequence of dots and dashes. The dot duration is the basic unit of time measurement in Morse code