Cover Image
QR Code

Design and development of a low cost and reliable writing aid for visually impaired based on Morse code communication.

There are a lot of assistive devices available for visually challenged people to make them self-dependent, but not many writing aids are available that could allow them to have written communication. Assistive devices also suffer from problem of low acceptance rate primarily because they are complex...

Full description

Published in:Technology & Disability Vol. 32; no. 2; pp. 59 - 68
Main Authors: Juneja, Sagar, Joshi, Pratyaksh
Format: computer program pictorial research tables/charts Journal Article
Published: Sage Publications Inc. 2020
Online Access:View this record in EBSCOhost
fields @attributes:
  recordID: 1
pdfLink:
plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=143829224&site=ehost-live
header:
  @attributes:
    shortDbName: ccm
    uiTerm: 143829224
    longDbName: CINAHL Complete
    uiTag: AN
  controlInfo:
    bkinfo:
    dissinfo:
    jinfo:
      jid:
        10554181
        3QS
      jtl: Technology & Disability
      issn: 10554181
      maglogo: N
    pubinfo:
      dt: 2020
      vid: 32
      iid: 2
      pid: 344
      pub: Sage Publications Inc.
      place: Thousand Oaks, California
    artinfo:
      ui:
        143829224
        143829224
        143829224
        10.3233/TAD-190257
        143829224
      ppf: 59
      ppct: 9
      formats:
        fmt:
          – @attributes:
              type: T
          – @attributes:
              type: P
      tig:
        atl: Design and development of a low cost and reliable writing aid for visually impaired based on Morse code communication.
      aug:
        au:
          Juneja, Sagar
          Joshi, Pratyaksh
        affil: Chitkara University Institute of Engineering and Technology, Chitkara University, Punjab, India
      sug:
        subj:
          Equipment Design
          Communication Aids for Persons with Disabilities
          Writing
          Vision Disorders
          Alternative and Augmentative Communication Methods
          Human
          Cost Benefit Analysis
          Portable Equipment
          Data Analysis Software
          Algorithms
          Software Design
      ab: There are a lot of assistive devices available for visually challenged people to make them self-dependent, but not many writing aids are available that could allow them to have written communication. Assistive devices also suffer from problem of low acceptance rate primarily because they are complex to use, have big cognitive load and are mostly expensive. This paper presents a low cost, portable and easy to use pen like writing aid for visually challenged people based on Morse code communication. Intelligent electronic hardware design has been carried out to make the device light weight and low cost with bill of materials (BOM) of electronic components is only $14. To make the device respond faster, a platform independent and novel software algorithm has been developed that runs on a microcontroller. Average speed of writing with the device is 70–80 characters per minute. It is a low power device with maximum rated voltage and current requirements of 5 V and 100 mA respectively. It is an easy to use and easy to hold device because it is designed in a pen like structure with the help 3D designing software and is made with light weight thermoplastic material using 3D printing technology.
      pubtype: Academic Journal
      doctype:
        computer program
        pictorial
        research
        tables/charts
        Journal Article
      ougenre: Article
    language: English
    refInfo:
    holdings:
      @attributes:
        islocal: N