Baum VarioUltra 20, User Manual, Page: 40 / 154

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4) BrailleBack should reconnect to VarioUltra. Best of all, if you’re using
a VarioUltra 20, your display will now be formatted for 20 cells instead
of 24. Thanks to customer Scott McCormack for his assistance
testing this functionality.
** New ** with v1.4: A further option is to install additionally BRLTTY for
Android 5.2 or higher. Then you can pair VarioUltra also with VarioUltra
emulation. And you can initialize the Bluetooth pairing from the Android
device to use HID key simulation, providing you with the option to wake
up your Android device from standby mode.
Finally, if you wish to use the braille keyboard of VarioUltra for braille
input on the Android device, please enter a character via braille keys
and follow the instructions on the Android.
2.6 Switching Between Connected Bluetooth Devices
Switching between connected devices on VarioUltra is achieved in
Braille Display Mode. Press and hold S2, tap and release the
appropriate braille key, and then release S2.
To switch between USB and the four channels of Bluetooth (BT), do the
following:
_ USB: S2 + B1
_ BT1: S2 + B4
_ BT2: S2 + B5
_ BT3: S2 + B6
_ BT4: S2 + B8
When switching to the USB channel, the braille display will show USB.
When switching to one of the Bluetooth channels, the braille display will
show something like, “BT1 My iPhone”, or whatever name your device is
recognized as. If you see brackets either side of the device name, it
means the device is paired, but not in range.
If Bluetooth was off before attempting to connect with a previously paired
device, selecting the device will force Bluetooth to switch on
automatically. When this happens a message on the braille display will
ask you to wait while Bluetooth is switched on, and then it will display the
Bluetooth channel and device name information. It only takes a second
or two.
2.7 Mapping Bluetooth Channels.