Active Braille
Operation of the Active Braille
Handy Tech
Elektronik GmbH
Page 41
5.1.9 Info (I)
You can check flash memory usage and the remaining charge and status of the batteries
in the
'Info'
menu. You can also check the firmware version and serial number and
determine the configuration of the external keyboard.
5.1.9.1 Memory usage (M)
The Active Braille contains 4 GB of text memory, which equals text consisting of more than
4 billion characters.
The number of files that can be saved depends on their size. The file system's smallest
addressable unit (one sector) on the Active Braille is currently approximately 8000
characters, and there are 512 sectors available to the file system. However, if you save a
file requiring less space than one sector, an entire sector will still be used for this file. We
therefore recommend collecting small notes together in one file if possible and marking
them with search marks.
After you select
'Memory usage'
, the size of free disk space is displayed in KB (kilobytes)
as follows:
'3863136 KB of 3864064 KB (99%) free space'
. You can exit this menu item
by pressing [TLC].
5.1.9.2 Battery statistics (B)
This menu provides various data regarding the batteries contained in your Active Braille. It
consists of the three functions described below.
Please note that the values displayed by these functions are not updated dynamically. You
should close them by pressing [TLC] and reactivate them with [TRC] in order to display
updated information.
5.1.9.2.1 Capacity (C)
Here you can check the charging state of the batteries indicated by one of the fife following
values:
Fully charged: The batteries are 100% charged.
High: Much more than 50% battery charge remaining.
Medium: About 50% battery charge remaining.
Low: The battery charge is low but still sufficient. We recommend plugging in the
charger.
Empty: The battery charge is almost empty, a warning sound appears. Please plug in
the charger immediately.
5.1.9.2.2 Voltage (V)
This menu item provides information on the voltage remaining in the batteries. The voltage
of fully charged batteries is approximately 5.6 V. If battery voltage falls below ca. 4.0 V, the
Active Braille turns itself off. You can thus use Voltage to estimate your batteries' status.
We recommend replacing the rechargeable batteries if you notice the voltage decreasing
unusually rapidly after having used them for some time.
