User's Manual

From within BrailleSense programs, the "F2" key opens the program specific

menu, similar to pressing “Alt” in Windows.

 Note: you may also use "Space-M" to perform this function.

The "F3" key functions as "Tab ("Space-4-5")". "Space-F3" serves as "Shift-Tab

("Space-1-2")". F3 is also used together with other keys to open BrailleSense

programs.

The "F4" key functions like the "Escape" key on a PC. You can also use "Space-

E". Please note that "Escape" does not exit a program, as does "Space-Z" but

rather, exits menus, dialogs, or prompt boxes. It also serves as the Back button

in native Android apps.

You can use the function keys in combination to perform various other tasks.

Pressing "F1" and "F2" at the same time functions as "Page Up". Pressing the

"F3" and "F4" keys together serves as "Page Down". "F1" and "F4" together

opens the task list. Pressing the "F2" and "F3" keys together cycles through the

running programs; similar to pressing "alt-tab" on your PC. The Task List and

task switching are explained in greater detail in section 2.9.

The keys to the left and right of the spacebar are referred to as Control and Alt.

This is because, in native Android applications, these keys function as Control

and Alt on a QWERTY keyboard so that you may take advantage of native

Android keyboard shortcuts when they are present. In BrailleSense specific

applications, these keys operate similarly to "Space-1" and "Space-4" and

provide an alternative method for scrolling through menus and lists.

2.4 The AC Power Supply and the Battery Pack

To check the battery power status, press "Space-1-6." The unit displays the

following 2 items: