Apr 12, 2011
Braille Keypad for Visually Impaired ECE Project Report
This is a good Electronics and communication engineering project report on Braille Keypad for Visually Impaired. The main objective of the project is to create a low cost, economical typing device and Braille tutor system for the blind. The project uses DTMF logic, Encoder, decoder, microcontroller etc. Braille keypad for visually impaired is a device that can be used by blind for two major purposes i.e. Note Taker, Electronic Braille Tutor System. You can also Subscribe to FINAL YEAR PROJECT'S by Email for more such Projects and Seminar.
The above figure shows the block diagram of Braille Keypad for Visually Impaired. The report also contains circuit diagram and component list of this project. Braille keypad uses DTMF logic for entering the characters. UM91215B encoder generates the DTMF signal for the key pressed. This signal is fed to the MT8870D decoder, which decodes DTMF signal into 4 bit output. Use this project for your help and study purpose only.
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