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 (< [email protected]>) 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 > _______________________________________________ > This message was sent via the BRLTTY mailing list. > To post a message, send an e-mail to: [email protected] > For general information, go to: http://brltty.app/mailman/listinfo/brltty
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