voice) will be played through that audio device. If the device fails to function
properly, you might end up without any useful feedback. In that case, you can
always disconnect a faulty audio device by raising the volume beyond the
maximum level, i.e. pressing the volume button a few times in rapid succession.
Turning the Bluetooth on and off
The Bluetooth function is off by default. This helps to save energy of your battery.
We recommend that you turn Bluetooth off if you don't use it. You can turn
Bluetooth on and off using the first option in the menu.
How pair a new device
•
Enable the pairing mode on your device. Some devices are in the pairing
mode by default when turned on and out of signal. Other devices have a
special key or combination of keys that will trigger the pairing mode. This is
device-specific and can be found in the manual of the device.
•
Once your external device is in the pairing mode, select the "Scan for devices"
option in the Bluetooth menu of BlindShell. The scan will take up to half a
minute after which a list of nearby devices will be presented to you.
•
A one-finger long-press gesture on the selected device will trigger the pairing
process. This will generally take a few seconds.
•
In some devices, you may be asked to enter a verification code. If this
happens, you need to type a code given by BlindShell on your external device
and confirm it by the Enter key.
Connecting and disconnecting a device
A newly paired device should be generally connected automatically. However, this
is not the case with all devices. Sometimes it's also useful to be able to connect and
disconnect devices at will, without pairing and unpairing them.
To connect or disconnect a device:
•
Select the "Paired devices" menu item, all paired devices will appear in this
menu.
•
A one-finger long-press on a device will open a menu where you can select an
operation to do with your device (connect, disconnect, unpair).
•
If you choose "Connect device" or "Disconnect device", an attempt to connect
or disconnect a device will be made. Once it succeeds, the device will assume
its function (the sound output will be redirected).
•
If you choose to unpair a device, this device will become unavailable until you
pair it again. Some devices may require this action before they can be
connected to another phone.
Notes about Bluetooth
•
Before you can connect a paired device, you usually need to turn it on by a
switch on the device. Some devices may turn themselves off after a period of
inactivity.
•
There is a vast number of Bluetooth devices on the market. BlindShell cannot
guarantee compatibility with every device available. Your BlindShell vendor
might be able to give you advice or offer you a tested model.
•
Due to possible radio interference and due to the nature of the Bluetooth
protocol itself, there is no guarantee that a device will be found during the
scan procedure. If you can't see or pair your device, make sure it's still in the
pairing mode and then try the procedure again. If the problem prevails, make
sure there is no strong source of interference in your area, like another
Bluetooth device, a WiFi router or some other radio device nearby.
