Semaforo key and how it works

Hello steemits I hope you are well I bring another key that is the traffic light

Traffic light (communication)
For other uses of this term, see Semaphore (disambiguation).
The traffic light (or traffic light alphabet) is a communication system in which the position of the arms is used to represent each letter of the alphabet, included in the International Maritime Organization (IMO) international signal code. For daytime use, since flags are used to clearly identify the position of the arms (for nighttime communication it is preferable to use torches instead of pennants or use the Morse code with a flashlight or other light source).

Originally created to represent the English alphabet, so it does not include non-English characters and to this day there is no consensus on how to do it, which has given rise to numerous "solutions" that have not been universally accepted. Initially its use was military, but at the moment it is part of the training of the Conquerors Club, as well as of the scouts when being included by Baden-Powell in Scouting for boys.

Alphabet
One of the easiest ways to learn the semaphore alphabet is to divide it into four sections (or "twirls", in the sense that they remember the turns of the clock). Next, the semaphore alphabet is presented as it sees the subject receiving the message, differentiating each "turn":