Development of a Braille Self-Learning Device with Voice Recognition and Letter Control by Encoder and Solenoid

The Braille system is a tactile reading and writing system, this is used by millions of people with some kind of visual impairment around the world and can represent letters, numbers, punctuation marks, mathematical and musical symbols in different languages. Based on this, an interactive device was created with the purpose of learning the Braille language in an autonomous way. It shares similarities with an encoder, having the 27 letters of the Spanish alphabet, represented in Braille language. Its operation is based on the use of solenoids for the lifting of the keys, this by means of the concepts of magnetic fields for the selection of each letter and also counting with a voice module, in this way the device gives us feedback, thus seeking a process to facilitate this learning. That said, a device was made to promote the learning of Braille language, which has a teaching method that allows the proper knowledge of the feeling that has the relief of each of the different letters of this same system, also providing a voice module, interpreting the user's responses to thus give feedback, from the sound of an alarm if the user has the correct letter, or being another sound in the opposite case. This model is simple and easy to use by any person, without the need of external help.