Orbit Writer
– User Guide
Version 1.1
Orbit Research
Confidential and Proprietary Information
11
7.12 Low battery lockout
The Orbit Writer gives a short pulse at power on if it detects the battery capacity
critically low 0% and immediately turns itself off automatically.
8
Built-in self-test
Once the Orbit Writer is turned on press and hold Space keys together
for one second to enter in built-in self-test (BIST). It responds with a long pulse.
Under this test, all keys can be tested. To test the key, press that key, and the
Orbit Writer responds with a single short pulse for each keypress event.
The Orbit Writer can be exited from a built-in self-test by pressing and holding
Space keys together for one second. It responds with a long pulse.
9
Selecting the channel of communication
The Orbit Writer supports up to five Bluetooth channels and one USB channel.
This means that you can use the Orbit Writer over USB with your desktop computer
and also set up Bluetooth connections to your phone and tablet. The user can
select one active channel at a time while the other channels remain in standby
mode. The Orbit Writer sends keypad events to the device connected to the active
channel.
The Orbit Writer supports 5 Bluetooth communication channels and 1 USB
channel. For each Bluetooth channel (channels 1-5), two communication
protocols are possible:
•
Screen Reader Profile (SRP)
—used to communicate as a braille device to
screen reading software
•
Keyboard-HID
—used if the Orbit Writer is to emulate a QWERTY
keyboard.
For the USB channel (channel 6), the possible protocols are Orbit-HID (supported
by screen reading software such as JAWS or NVDA) and Braille-HID. For most
situations, the default protocols for Bluetooth and USB channels will not need to
be changed. The following table summarizes the commands to activate each
channel.
# Channel Command to activate the channel
1 Bluetooth
Space + Left Arrow + Dot 1
2 Bluetooth
Space + Left Arrow + Dot 2
3 Bluetooth
Space + Left Arrow + Dot 3
4 Bluetooth
Space + Right Arrow + Dot 4
5 Bluetooth
Space + Right Arrow + Dot 5
6
USB
Space + Right Arrow + Dot 6
You can switch to any channel by pressing the corresponding activation command.
