Ver­sion 2.0?

Electronics For You - - INNOVATION - The au­thor is a tech cor­re­spon­dent at EFY Ben­galuru

Setty has al­ready con­cep­tu­alised the im­prove­ments he wants to see in the fi­nal (fifth, if you were count­ing) pro­to­type:

1. Two Braille cells, in­stead of the present one, to make sure the com­plete Bharati Braille can be taught in­clud­ing

of In­dian lan­guages 2. Built- in bat­tery and charg­ing ca­pa­bil­ity for op­er­a­tion in re­mote/ru­ral ar­eas where power out­ages are quite fre­quent

3. Locally made im­proved so­le­noids (with high push force) 4. A head­phone socket in­ter­face 5. Vol­ume con­trol fa­cil­ity the de­vice to store all the sounds. Pro­pri­etary soft­ware was de­vel­oped to UeDG WKe SD FDUG DnG SODy DuGiR fiOeV in a syn­chro­nised man­ner in real time. The DuGiR iV UeFRnVWUuFWeG IURP wDve fiOeV us­ing pulse-width mod­u­la­tion. Af­ter get­ting the soft­ware and hard­ware right, we FRnGuFWeG fieOG WUiDOV RI WKe Ge­viFe. It’s then we re­alised that teach­ing In­dian lan­guages and ab­bre­vi­a­tions re­quired two Braille cells,” ex­plains Setty.

Fi­nally, the team started work on the fourth pro­to­type in April this year. They still had one tech­ni­cal chal­lenge to crack—the im­ported so­le­noids were too ex­pen­sive to make the prod­uct vi­able and too low in force. This was a crit­i­cal as­pect to be ad­dressed be­fore the prod­uct was for­mally an­nounced.

So the team worked with a Mum­bai-based com­pany, to de­sign a coil for the hy­brid de­sign of a solenoid and lin­ear mo­tor to mul­ti­ply the force of the solenoid. The so­le­noids are driven by aar­ling­ton tran­sis­tor ar­rays.

Judge­ment day

Setty is pretty ex­cited about the prod­uct and how it will be re­ceived by the fo­cus mar­ket. The prod­uct is expected to be ready for re­lease in Oc­to­ber this year.

“We have not an­nounced it for­mally, as of yet. But we have cer­tainly demon­strated it in var­i­ous blind schools and NGOs, who are very keen to know about the pro­duc­tion date,” in­forms Setty.

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