mechatronics braille display

Abstract

Mechatronics Braille display is a device that displays brAILLE CHARACTERS FOR BLIND AND VISUALY impaired to read by touching . a Braille character consists of six or eight dots in a rectangular array 3*2 or 4*2 . The height of the dot is controlled by a piezoelectric bimorph underneath. Electrical signals simulate the piezoelectric bimporphs to end up or down , consequently causing the dots to rise or fall, crating the Braille characters .USB port uses to get the data from PC and send it to microcontroller > mbed microcontroller is used to process the entered text and convert it to braill code, then it used as acontroller of the system for controlling the piezoelectric Braille cell. The device is built and tested with number of blind and visually impaired. The result prove the performance, applicability of the device functions with blind/visually impaired need of the device.