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Num2Braille: A braille calculator
KTH, School of Industrial Engineering and Management (ITM).
KTH, School of Industrial Engineering and Management (ITM).
2019 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesisAlternative title
Braille miniräknare (Swedish)
Abstract [en]

This thesis attempts to answer how a “braille-only” calculator can be constructed and what needs consideration. An attempt to create such a device has been made. The underlying purpose is the poor selection of braille devices readily available in the market. Braille literacy is very low and the development of easy to use devices that utilize braille actively might encourage the learning of the language.

A new design for a braille display, which is the display of the calculator, is proposed and a prototype has been built to test it. The first prototype is promising, albeit impractical and quite large. It functions as a calculator but it requires manual calibration upon startup to set the braille wheels to their starting positions.

Abstract [sv]

Rapporten försöker svara på hur en miniräknare som enbart använder blindskrift can byggas och vad som bör tänkas på. Ett försök till att konstruera en sådan apparat har gjorts. Den bakomliggande anledningen till detta är det tunna utbudet av blindskrifts-apparater på marknaden. Läskunnigheten av blindskrift är väldigt låg och utvecklandet av apparater som aktivt använder blindskrift kan uppmuntra lärandet av språket.

En ny design till en braille skärm, som blir skärmen till miniräknaren, föreslås och en prototyp har konstruerats för att testas. Den första prototypen är lovande, även om den är ganska opraktisk och stor. Den fungerar som en miniräknare men kräver manuell kalibrering vid uppstart för att nollställa läget hos braille-hjulen.

Place, publisher, year, edition, pages
2019. , p. 48
Series
TRITA-ITM-EX ; 2019:62
Keywords [en]
Mechatronics, Braille calculator, Braille display, Braille device, Arduino., Mekatronik, Braille-miniräknare, Brailleskärm, Brailleapparat, Arduino.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-264437OAI: oai:DiVA.org:kth-264437DiVA, id: diva2:1373518
Supervisors
Examiners
Available from: 2019-11-27 Created: 2019-11-27 Last updated: 2019-11-27Bibliographically approved

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fulltext(6844 kB)3 downloads
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Type fulltextMimetype application/pdf

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