Thanks for your reply, Dave. ESP32 is a modern affordable microcontroller many developers use for prototyping wireless embedded systems. It can be programmed using C language on Arduino IDE.
If you can access the attached .ino file in previous email, it contains the code for the current prototype. I am using serial bluetooth to communicate with a connected smartphone. I need to send text manually from serial bluetooth app on the smartphone to be converted to braille array on the device. A whole paragraph can be sent at once. ReadRing has 8 programmable buttons to navigate. If attachment does not work in this mail loop, I can paste the code in email if needed. The problem is I do not know what kind of Bluetooth string is sent from screen readers to such braille displays in general to display any language. If I see a sample code, I can learn and adapt from there. There is one prototype being kept with Brian MacDonald at National Braille Press in case you want to have a hand on it. Blessings, Song On Sun, Sep 19, 2021, 10:46 Dave Mielke <[email protected]> wrote: > [quoted lines by Songpakorn Punongong on 2021/09/18 at 09:51 +0700] > > >I need help in developing a bluetooth braille display based on ESP32. > > What's ESP32? > > >I want it to communicate like other braille displays. Please help me find > example codes for bluetooth/BLE braille displays. > > Are you wanting to have a brltty driver for it? If so, Bluetooth serial > (i.e. using an RFCOMM channel) is fine. That, in fact, is how most > manufacturers do it. > > Have you already designed the (serial) protocol that you'd like to use? > > -- > I believe the Bible to be the very Word of God: http://Mielke.cc/bible/ > Dave Mielke | 2213 Fox Crescent | WebHome: http://Mielke.cc/ > EMail: [email protected] | Ottawa, Ontario | Twitter: @Dave_Mielke > Phone: +1 613 726 0014 | Canada K2A 1H7 | > _______________________________________________ > 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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