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Application and Implications/project Development

What will it do? Pop braille will works as a learning toy for children who are visually impared and not, to learn Braille.

The toy will have 3 aspects to it:

  1. RFID card and reader which will work as a trigger, programmed as individual letters.

  2. Braille cell made with solenoids which will get trigged when RFID card with particular letters are placed on the reader.

  3. Sound output with particular letters that was placed on the card reader.

  4. Also will have Neo pixles which will make colorful and firendly apperance.

Who’s done what beforehand?

I have seen many learning devices for visually impared, here are some examples.

And when I was doing my project, I found a commercial project with similar idea called BecDot which was inspired to be made for their daughter. They use actual commercial braille cells.

But I wanted to make my board for kids who are blind and not alike, and make it more fun and colorful.

What will you design?

I will design: 1. the casing which will be 3d printed 2. the electronics board for the controls 3. 2d design laser cut acrylic top and solenoid holder 4. solenoid top, mushroom head which will be molded and casted.

What materials and components will be used?

  1. PLA
  2. Acrylic
  3. vinyl
  4. esp32-Wroom32
  5. solenoids
  6. DF mini Player
  7. Buck converter
  8. resistors
  9. capacitors
  10. button
  11. slide switch
  12. power jack and power adapter
  13. voltage regulators
  14. LED
  15. TIP120
  16. diode
  17. wires
  18. RFID cards and RFID card reader
  19. Neo-Pixles
  20. scew head
  21. Connectors
  22. FTDI cable
  23. silicon for molding and casting
  24. speaker

Where will come from?

All the items are already in the lab, except for the speaker and DF player. Which was pruchased by Rico from Japan and from Amazone respectively.

How much will they cost?

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What parts and systems will be made?

The casing, the solenoid holder and the circuit board will be made by me. The commercially avaliable buck convertor and power adapter will be used. Also for sound, readily avaliable mp3 playe DF mini player will be used.

What processes will be used?

  • Additive manufacturing using Prusa MK3 3d printer will be used
  • Substractive manufacturing using Tortech laser cutter.
  • PCB production using Roland SRM20
  • Silicon casting on 3d printed mold.

What questions need to be answered?

  • The distance between each braille cells.

  • height of the braille cell and how long the braille should be out.

How will it be evaluated?

  • When placing the particular RFID card with letter it pops the braille letters
  • It also plays sound with particular brailler letters.
  • The design is also very much like a toy for kids.