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Support Baum Pronto! and VarioUltra connected via Bluetooth #3717
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Comment 1 by jteh on 2013-12-13 23:35 If that works, we can look at detecting that display. I'll need information from Baum to make that work well. Failing that, we'll need technical documentation and access to a device to have any chance of supporting it. |
Comment 2 by jteh on 2013-12-13 23:38 |
Comment 3 by pavel.kaplan on 2013-12-14 09:55 |
Comment 4 by jteh (in reply to comment 3) on 2013-12-15 00:38
You noted that it works via Bluetooth with BRLTTY. Since BRLTTY doesn't have any specific support for Pronto, this suggests that it uses a similar protocol to other Baum devices when in serial mode, which is why I thought it should work with NVDA via Bluetooth/serial also.
I am, but I only have one (older) display to work with.
That is not enough. We need access to a device in order to develop it properly. If Baum are willing to loan me a device, I will be able to implement support. Otherwise, this will have to wait for another experienced developer who has access to a device. |
Comment 5 by jteh on 2015-06-17 06:22 |
Comment 6 by jteh on 2015-10-19 04:57 |
Comment 9 by James Teh <jamie@... on 2015-11-01 22:35 As part of this, make the Baum initialisation probe simpler and possibly more reliable. |
…nected via Bluetooth. As part of this, make the Baum initialisation probe simpler and possibly more reliable. Fixes #3717.
Reported by pavel.kaplan on 2013-12-13 21:33
Pronto is a wellknown notetaker from Baum. that supports a braille terminal mode.
There are models with 18 and 40 cells with braille keyboard.
i know that generally there are 2 ways to connect baum braille displays to NVDA. 1. by using internal driver for APH/Baum/Humanware devices. 2. by using BRLTTY. i tried both options but had no results. i tried all posible options. first i tride to connect pronto to NVDA as braille display by using usb to com, then via bluetooth. in last versions of the pronto's firmware the support for USB HID Tecknology was also added. although i know that currently this option is only working with CEbra screen reader, i tried also this variant. when i so that i wasn't able to conect pronto as a braille display to NVDA i asked Baum about the possibility to do this and got the following answer:
Unfortunately neiterh the driver in NVDA nor the BRLTTY support the connection of Pronto! 18 V3 as Braille Display in any way.
Only with Pronto! 40 you can connect via Bluetooth using BRLTTY, because with this driver combination the support of BAUM VarioConnect 40 Braille Display also allows to sent the braille information to the braille display of Pronto! 40.
The new USB HID connection technology in Pronto bases on agreements of the Open Braille Consortium but is until now only implemented in COBRA. Somebody should have to modify the NVDA braille driver or create a new NVDA braille driver to use this connection type.
As NVDA is an open sorce project it should be possible to modify the driver. so i would like to have such a driver wich will allow to use pronto as a braille display.
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