User friendly system for the visually impaired in learning Al-Quran

This study presents a method to enable the visually impaired Muslim to learn and read the Al-Quran using Braille Display with software help. The system reads the database which contains all verses of Al-Quran and user will need to select the verse and ayah to read. Besides that, this system can be used in a class to teach visually impaired students to learn Al-Quran. Every word or character typed by the instructor in the main Braille Panel will be transmitted to the sub Braille Panel that is connected to the main Braille Panel. The selected verse of Al-Quran and ayah will also generate an index before being transmitted to the Braille Panel. The index will be transmitted to the Braille Display for people to touch and read the display. A user friendly Graphical User Interface (GUI) will be used to fulfill the ergonomics for the visually impaired user's physical capabilities. Several approaches are used to design and implement the interface for the visually impaired like speech or sound output and Braille display. The Braille codes can be displayed using the Braille panel. The design interface and structure of the system for the visually impaired users in learning Al-Quran is presented

Development of piezoelectric braille cell control system using microcontroller unit (MCU)

This paper describes about designing and developing a system for controlling piezoelectric Braille cell by using Programmable Interface Controller (PIC) microcontroller. For this purpose, PIC microcontroller is used as a controller to the system for controlling the piezoelectric Braille cell. Piezoelectric Braille cells are used in many refreshable Braille display applications. The Braille displays using piezoelectric Braille cell are able to refresh the Braille character that are read by the visually impaired by touching the dots at Braille cell. Each piezoelectric Braille cell consisting of six or eight movable pins or dots in rectangular array. The height of pins or dots in Braille cell is controlled by a piezoelectric bimorph. This will cause the pins or dots at piezoelectric Braille cell to rise or fall and therefore, create the Braille character or alphabet. Throughout the paper, the pin or dots at piezoelectric Braille cell which represent a certain Braille character is also presented. The architecture and operation of the system is discussed in detail, considering both the hardware and software elements involved. The software for programming the PIC microcontroller was written with CCS C program language. The system is developed and tested successfully. This system can be applied in the Braille Display which uses the piezoelectric Braille cell to display some of Braille characters