[BRLTTY] ReadRing rotary braille display

[discapacidad5]

Hi, I don't speak English, I'm using the google translator, I hope
they understand me, my language is Spanish


I am developing a braille line with the ardiuno IDE and esp32 I have
all the hardware but my problem is precisely that I do not fear how to
communicate with the esp32

I have tried to connect the serial monitor of ardiuno and connect the
esp32 by bluetooth and in the output of the serial port I get pure
question marks and unreadable characters

I would like help to develop the software that would go in the esp32
that exchange data with the devices


my project consists of a very low cost braille display probably anyone
can manufacture with less than $ 50 the idea is to create everything
and make it available so that anyone can print their own braille
display on a 3d printer and added the esp32 card and the driver can
make your own braille line I hope someone can help me


El vie, 17 sept 2021 a las 22:52, Songpakorn Punongong (<
songpakorn at read-ring.com>) escribió:

> Hello everyone,
>
> I need help in developing a bluetooth braille display based on ESP32.
>
> I am developing ReadRing, a rotary refreshable braille display to be sold
> under 300 USD in mass production (Handmade units being sold at under 400
> USD in Thailand).
> The patented rotary braille mechanism allows continuous braille steaming
> inside its drum as the user moves the mouse-sized device to the right.
> Users can read braille sentences as long as they want. The recent prototype
> contains only 3 piezoelectric actuators, so the electronics can be very
> simple. It is powered by a 800 mAh 3.7V battery with a thumbnail-sized
> Nixie clock 170 volts converter. The total weight is 91 grams, half of a
> smartphone. This rotary architecture enables real time OCR-to-braille with
> line tracking when we have embedded computer vision technology in the near
> future. You can see videos of working prototypes tested by blind students
> on the website below.
>
> I have made a few major revisions of working prototypes in the past 6
> years of development. The recent one uses ESP32-WROVER-B TTGO-T7 v1.5 that
> communicates with a smartphone via serial bluetooth. Now, I only know
> serial bluetooth and functional interrupt learning from an example in the
> Arduino IDE as attached. I want it to communicate like other braille
> displays. Please help me find example codes for bluetooth/BLE braille
> displays.
>
>
> Thank you
>
> --
> Songpakorn Punongong, Mr.
> CEO & CTO
>
> ReadRing Co., Ltd.
> Tax ID: 0105560141347
> www.read-ring.com
> 328/1 Memorial Building of Ray C. and Elizabeth Downs, 2nd Floor
> PhayaThai Road, Thanon Phetchaburi Sub-district, Ratchathewi District
> Bangkok 10400, THAILAND
> +66813510162
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