02Sep 2019


  • College of Engineering, Laguna State Polytechnic University Philippines.
Crossref Cited-by Linking logo
  • Abstract
  • References
  • Cite This Article as
  • Corresponding Author

This research focused on the design and development of a Talking Braille Calculator. More specifically, the following were the objectives of the study: specify the technology requirements needed for the development of a Talking Braille Calculator; test the Talking Braille Calculator in terms of its responsiveness, synchronization and accuracy and evaluate the Talking Braille Calculator in terms of effectiveness. The Talking Braille Calculator was developed to help the visually-impaired students to study and SPED teachers to teach the four Mathematical operations with the implementation of Braille Writing system. It was set to provide an advanced tool for the visually-impaired students and teachers of Santa Cruz Central Elementary School (SCES), Sta. Cruz, Laguna. The design of the Talking Braille Calculator used the idea of the conventional calculators with the implementation of Nemeth codes programmed in order to mount the answer through the braille pins attached to the device using a servo motor. The keys, buttons and braille pins can talk when pressed using the pre-recorded voice installed into the voice module. The research resulted to use C Programming Language to program the PIC microcontroller that controls the whole device including the voice module and the servo motor. It can process a whole operation in 13.05 sec. which consist of four digits, and one operator pressed with the result matching the pre-recorded voice and the display. The device obtained 4.903 weighted mean average interpreted as Highly Acceptable evaluated by the visually- impaired students.

  1. Mandela, (2013) Education: The Most Powerful Weapon for Changing the World
  2. Bituin, et. Al. (2013) Development of Braille Calculator
  3. Ackermann, Ernest C. (2015). C Programming Language Essentials, Essential Study Guides. Research &Education Association, 2015. Page 2-3. Retrieve from https://books.google.com.ph/books?id=fj0m3Y6zXCUCpg=PA1&dq=c+programming+language&hl=en&sa=X&ved=0ahUKEwjtlejC3cPaAhXFpY8KHZi_A9U4ChDoAg1MAQ#v=onepage&q=c%20programming%20language&f=false
  4. AudioMan (2016). Earphones, Earbuds, Canalphones: What?s the Difference? Article retrieved on October 9,2017 from https://www.audiolinks.com/blog/earphones-earbuds-canalphones/
  5. Baig, Edward C. and LeVitus, Bob (2011) IPad 2 For Dummies. John Wiley & Sons. Page 280. Retrieved on
  6. October 7, 2017 from https://books.google.com.ph/books?id=slNS72LxHVwC&pg=PA280&dq=earphones&hl=en&sa=X&ved=0ahUKwigl5z1zOLWAhVEXbwKHZHNBugQ6AEIQTAF#v=onepage&q&f=false
  7. Ballou, Glen (2015). Handbook for Sound Engineers., The Hazard of Earbuds. CRC Press, 5 Mar 2015. Retrieved on October 9, 2017 from https://books.google.com.ph/books?id=8BLwBgAAQBAJ&pg=PT217&dq=earphone+and+earbuds&hl=en&sa=X&ved=0ahUKEwj4mZvgkOPWAhWL2LwKHa9vBkk4ChDoAQhOMAY#v=onepage&q=earphone%20and%20earbuds&f=false
  8. Becker, Cher (2009). Soft Shell In-ear Earphones with Miniature Speaker Inserts. Page 1. Retrieved from https://docs.google.com/viewer?url= patentimages.storage.googleapis.com/pdfs/US20100195860.pdf
  9. Chaudhary, Harry H. (2014). The C Programming Language. Createspace LLC USA, 2014. Page no. 16. Retrieve from https://books.google.com.ph/books?id=6qgBBAAAQBAJ&printsec=frontcover&dq=c+programming+language&hl=en&sa=X&ved=0ahUKEwiY2eadosTaAhXGMI8KHUP4A3gQ6AEIKzAB#v=onepage&q=c%20programming%20language&f=false
  10. Chen Chunpinga et al. (2011). Research and Development of C Language Programming Experiment Assistant Management Platform Based on Hybrid Architecture. College of Information, Qingdao University of Science & Technology, Qingdao, China. Elsevier Ltd, 2011. Retrieved from https://ac.els-cdn.com/S1877705811020534/1-s2.0-S1877705811020534-main.pdf?_tid=235c60b4-87bd-4daf-a20c-84f50276b41f&acdnat=1524069136_6fbca7a7c2e5d8bdba9de66d276e1adc
  11. Clifton, Jacob (2017). How A Calculator Works? Article retrieve on October 11, 2017 from http://electronics.howstuffworks.com/gadgets/othergadgets/calculator3.html

[Cheerobie Aranas, Ramon Flores, Rina Arcigal and Jonnel Pabico. (2019); DESIGN AND DEVELOPMENT OF TALKING BRAILLE CALCULATOR. Int. J. of Adv. Res. 7 (Sep). 44-48] (ISSN 2320-5407). www.journalijar.com

Ramon P. Flores
Laguna State Polytechnic University


Article DOI: 10.21474/IJAR01/9628      
DOI URL: http://dx.doi.org/10.21474/IJAR01/9628