Orbit Research GRAPHITI User manual

GRAPHITI
–User Manual
25th October 2021
Version 1.0

Graphiti –User Manual Version 1.0
Orbit Research 2
Contents
1INTRODUCTION------------------------------------------------------------------------------------------------4
2HOW THE GRAPHITI PROTOTYPE IS USED---------------------------------------------------------- 4
2.1 STAND-ALONE MODE -------------------------------------------------------------------------------------4
2.2 REMOTE MODE---------------------------------------------------------------------------------------------4
3FEATURES------------------------------------------------------------------------------------------------------- 4
4ORIENTATION -------------------------------------------------------------------------------------------------- 5
5USER INTERFACES ------------------------------------------------------------------------------------------ 7
5.1 DEVICE KEYPAD -------------------------------------------------------------------------------------------7
5.2 TOUCH PANEL----------------------------------------------------------------------------------------------7
5.3 USB ---------------------------------------------------------------------------------------------------------8
5.4 HDMI--------------------------------------------------------------------------------------------------------8
5.5 BLUETOOTH ------------------------------------------------------------------------------------------------8
5.6 EXTERNAL STORAGE MEDIA (SD CARD AND USB DRIVE)------------------------------------------8
5.6.1 Error Handling-----------------------------------------------------------------------------------------9
5.7 PC KEYBOARD ---------------------------------------------------------------------------------------------9
6POWERING ON AND OFF-----------------------------------------------------------------------------------9
6.1 RESET ----------------------------------------------------------------------------------------------------- 10
6.2 SLEEP ----------------------------------------------------------------------------------------------------- 10
6.2.1 Automatic Power Down--------------------------------------------------------------------------- 11
7CHARGING THE DEVICE---------------------------------------------------------------------------------- 11
7.1 BATTERY -------------------------------------------------------------------------------------------------- 11
8MESSAGE BAR ---------------------------------------------------------------------------------------------- 12
9VIBRATION INDICATION ---------------------------------------------------------------------------------- 12
10 PREFERENCE MENU--------------------------------------------------------------------------------------- 13
10.1 KEY CONTROLS FOR THE PREFERENCE MENU------------------------------------------------------- 13
10.2 MENU ITEMS---------------------------------------------------------------------------------------------- 13
11 CLOCK CONFIGURATION -------------------------------------------------------------------------------- 18
12 TOUCH FEATURES ----------------------------------------------------------------------------------------- 18
12.1 TOUCH GESTURES -------------------------------------------------------------------------------------- 18
12.2 DRAW FEATURE------------------------------------------------------------------------------------------ 18
12.2.1 Erasing -------------------------------------------------------------------------------------------- 20
12.2.2 Saving drawings -------------------------------------------------------------------------------- 20
12.2.3 Automatic File Saving-------------------------------------------------------------------------- 20
12.2.4 Reviewing drawings---------------------------------------------------------------------------- 21
12.2.5 Creating a new image ------------------------------------------------------------------------- 21
12.2.6 Modifying existing images -------------------------------------------------------------------- 21
12.2.7 User Indication during drawing -------------------------------------------------------------- 21
12.2.8 Canvas -------------------------------------------------------------------------------------------- 22
12.3 UNDO REDO FEATURE---------------------------------------------------------------------------------- 24
13 REMOTE OPERATIONS ----------------------------------------------------------------------------------- 25
13.1 GUI (PC UTILITY)---------------------------------------------------------------------------------------- 25
13.2 HDMI------------------------------------------------------------------------------------------------------ 26
13.2.1 Interface and Resolution---------------------------------------------------------------------- 26
13.2.2 Configuration------------------------------------------------------------------------------------- 26
13.2.3 HDMI Mode -------------------------------------------------------------------------------------- 26

Graphiti –User Manual Version 1.0
Orbit Research 3
13.2.4 Review HDMI Frame--------------------------------------------------------------------------- 26
13.3 BLUETOOTH FEATURE ---------------------------------------------------------------------------------- 27
13.3.1 Simple steps to work in Bluetooth mode-------------------------------------------------- 27
13.3.2 Connection and Pairing ----------------------------------------------------------------------- 28
13.3.3 Working with Standard Host (PC, Mobile or any other device)---------------------- 28
13.3.4 General Guide----------------------------------------------------------------------------------- 28
13.4 MASS STORAGE------------------------------------------------------------------------------------------ 28
13.5 API--------------------------------------------------------------------------------------------------------- 29
14 STANDALONE OPERATION ----------------------------------------------------------------------------- 29
14.1 FILE MANAGER COMMANDS---------------------------------------------------------------------------- 29
15 REVIEWING IMAGES--------------------------------------------------------------------------------------- 31
15.1 IMAGE PROCESSING ALGORITHM VARIANTS:-------------------------------------------------------- 32
15.2 COMMANDS FOR REVIEWING IMAGES ---------------------------------------------------------------- 32
16 REVIEWING CSV FILES (FOR CUSTOM DRAWINGS) ------------------------------------------- 34
16.1 FILE FORMAT --------------------------------------------------------------------------------------------- 34
17 REVIEWING PDF FILES------------------------------------------------------------------------------------ 35
17.1 USER INDICATION---------------------------------------------------------------------------------------- 36
18 REMOTE OPERATIONS WITH ORION TI-84 PLUS------------------------------------------------ 36
18.1 REVIEW ORION TI-84 PLUS SCREEN ON GRAPHITI ------------------------------------------------ 36
18.2 IMPORTANT NOTES-------------------------------------------------------------------------------------- 36
19 SLIDESHOW MODE----------------------------------------------------------------------------------------- 36
20 FIRMWARE UPGRADE------------------------------------------------------------------------------------- 37
21 BIST MODE ---------------------------------------------------------------------------------------------------- 37
22 SYSTEM LOG ------------------------------------------------------------------------------------------------- 38
23 LIMITATIONS-------------------------------------------------------------------------------------------------- 38
24 COMPATIBILITY --------------------------------------------------------------------------------------------- 38
25 TROUBLESHOOTING -------------------------------------------------------------------------------------- 39
26 APPENDICES ------------------------------------------------------------------------------------------------- 40
26.1 APPENDIX A: REVISION HISTORY --------------------------------------------------------------------- 40
26.2 APPENDIX B: PROTO 4C UNIT SPECIFIC LIMITATIONS AND CHANGESERROR!BOOKMARK NOT
DEFINED.

Graphiti –User Manual Version 1.0
Orbit Research 4
1 Introduction
Graphiti is a tactile graphic display prototype. The prototype is used either in a
standalone mode or by connecting to a PC through utility. Graphiti allows you to
draw, save and review pre-stored images from the device or PC and has the
following features:
1. 60 horizontal and 40 vertical pins to display that can be transformed to
accurately represent graphics/images
2. Reads the graphical content of files on an SD™ (Secure Digital) card for
the Stand-Alone Mode
3. Remote connectivity to PCs and mobile devices for use with a host
application
2 How the Graphiti Prototype Is Used
2.1 Stand-Alone Mode
Graphical content stored on an SD card is read in one of two ways:
1. Copied from PC to the device.
2. Drawn on the device and stored on the SD card.
In Stand-Alone mode, Graphiti displays the graphical contents of files, stored on
an SD card.
2.2 Remote Mode
Connect the device to a computer and then do one of the following:
1. Browse the image on the PC application to see on the device
2. Create images and store on the SD card of the device
The screen reader helps you to create and see the graphics as per your choice.
3 Features
Graphiti has the following features:
1. 2400 pins tactile display
2. Eight Input keys and a Space bar
3. Navigation pad with four directional buttons (Up, Down, Left, Right) and
the Select button
4. SD card slot
5. Bluetooth® wireless technology
6. HDMI port
7. USB port
8. User-replaceable, rechargeable battery
9. Power Status LED

Graphiti –User Manual Version 1.0
Orbit Research 5
4 Orientation
Orientation of buttons, keys, cells, and slots is important for understanding how
the device operates and how you input and receive information on the device.
To begin with, place the device on a flat surface in front of you with the keypad
closest to you. This is the proper operational orientation.
On top surface of the unit, closest to you are the user keys. Further away from
you is the tactile display panel, composed of an array of 40 dots horizontally and
60 dots vertically. To the left of the keypad there is one LED, which indicate
power and status of the device.
On the front vertical face of the unit, closest to you, from left to right, is an SD-
card slot.

Graphiti –User Manual Version 1.0
Orbit Research 6
On the left vertical face of the unit, from front to back, are the device ON/OFF
button, HDMI connector, USB-host connector, micro-USB connector, main
power-supply slider switch and the power jack. To turn on the device, move the
slider switch away from you.
Please note: Power button and power jack is on the right vertical face on the
device.
There are tactile dots underneath of sockets as shown in table below.
Power socket
1 dot
Micro USB socket
2 dots
Standard USB socket
3 dots
HDMI Socket
4 dots
These tactile dots will help you to access particular socket.
The device can be used either by connecting to a host device or in the
standalone mode for reviewing the images.
It supports the following operations in both remote and standalone modes.
1. Navigation through images
2. Zoom in and Zoom out
3. Panning through zoomed image
4. Rotate image
5. Invert image color
6. Selection of different image processing algorithm variants
7. Support for different image file types:
1. *.bmp
2. *.jpg
3. *.png
4. *.gif
5. *.tiff
6. *.svg
8. Support for pdf files.

Graphiti –User Manual Version 1.0
Orbit Research 7
9. Support for customized csv files.
10.Ability to display input image properties
11.Image editing
Images can be reviewed from the host using one of the following interfaces:
1. USB
2. Bluetooth
3. HDMI
Alternatively, images can also be reviewed in standalone mode from the SD card
and/or USB stick.
5 User Interfaces
Inputs can be given to the system through the following interfaces:
1. Device Keypad
2. Touch panel
3. USB
4. HDMI
5. Bluetooth
6. External Storage Media (SD Card and USB Drive)
7. PC keyboard
5.1 Device Keypad
Moving towards the top and near to you, find a row of three keys, with a wider
key in the middle. The wide key is the Space bar. The Dot 7 input key is to the
left of the Space Bar, and the Dot 8 input key is to the right of the Space Bar.
Above the three keys, is a navigation pad in the middle, between the Braille Input
keys and Space bar. The navigation pad contains four directional arrow buttons
(Up, Down, Left, Right) and the Select button.
The six traditional braille input keys are aligned horizontally above the navigation
pad and below the display, Dots 3 2 1 on the left and Dots 4 5 6 on the right.
In short, the keypad layout is as shown in the figure below.
DOT 3
DOT 2
DOT 1
UP
DOT 4
DOT 5
DOT 6
LEFT
SELECT
RIGHT
DOWN
DOT 7
SPACE/CHORD
DOT 8
5.2 Touch Panel
The touch panel provides control and navigation inputs for performing various
operations in local as well as in remote mode.
Draw mode allows you to create a new image or edit an existing one. Refer to
Touch feature for more details.

Graphiti –User Manual Version 1.0
Orbit Research 8
5.3 USB
There are two USB ports in Graphiti, one for the USB host and the other for the
USB device functionality.
Graphiti supports USB classes as shown below:
In Host mode, Mass storage class and
In Device mode
1. HID
2. Serial (VCP)
3. Mass-storage class
You can connect the USB stick to the unit’s host port and the PC to the USB
device port.
The driver installation in a host PC is necessary in USB serial mode. If Graphiti is
connected to the internet enabled PC, it will automatically install the device
driver. Automatic driver installation is however, recommended. You can also refer
“Graphiti Serial (VCP) Driver Installation Guide” for installing the driver manually.
5.4 HDMI
A standard HDMI socket allows connection to any HDMI source, such as a
computer, using commonly available HDMI cables. In HDMI mode, operations
like zoom, navigate, edit, etc. can be performed on the captured image. For more
information, refer HDMI section.
5.5 Bluetooth
Graphiti has a Bluetooth interface that provides wireless communication between
the hosts. For example, between PC or a mobile device and Graphiti. Once
paired and connected with the host, you can review images using the currently
available PC software GUI or through a custom GUI (using the standard API).
Refer Bluetooth for more details.
5.6 External Storage Media (SD Card and USB Drive)
The device supports SD cards and USB drives for the storage media. Both, SD
card and USB is shown as two separate storage drives in file manager, when
inserted in the device. You can perform operations like cut, copy, paste, rename,
image editing and reviewing and navigation among the files and folders.
In addition, the device supports file search operations. Type the initial letters of
the file name for the device to automatically start searching the files starting with
those letters in the current directory. The default language for any file and folder
name is English (US).
Graphiti uses standard full-size SD cards from 4GB to 32GB in capacity. The
card must be formatted as FAT32. There is no way to format a card on the

Graphiti –User Manual Version 1.0
Orbit Research 9
device. Most cards come already formatted. However, you can format one as
FAT32 on a desktop computer for use with Graphiti.
5.6.1 Error Handling
The device shows all error messages in the message bar.
1. If there is no SD card or USB drive inserted, the device shows, "no
storage media".
2. If there are no files on the SD card/USB drive, the device shows "no files".
3. If there is an error in reading the storage device, the device shows
"storage media err xx", where xx is the error number.
When a storage media is removed from the device, any ongoing activity (such as
reading/editing/copying etc.) gets cancelled immediately and the device displays
drive removal message.
5.7 PC keyboard
Once the device is connected with the user GUI, the navigation controls provided
in utility can also be operated using keys on the PC keyboard. A few keys share
dual functionality, which can be activated under certain conditions. For example,
the up/down arrow keys are used to scroll through image list as well as navigate
the pan window after applying the zoom function on the image.
Note that the PC utility needs to be active in order to use PC keyboard with the
device.
6 Powering ON and OFF
To power On the device, follow the steps mentioned below.
1. Plug the power cord into the power jack and turn on the main supply.
2. Power availability is indicated by the red LED.
3. Connect the micro-USB cable between the main USB port and the PC
(Optional).
4. Press the power button for two seconds. The device will emit a single
long vibration pulse.
5. The unit emits vibration pulses once in every two seconds while the
device initialization.
6. Once initialized, again the device will emit a single long vibration pulse.
The red LED will turn green indicating that the device is ready for use.
7. The device shows one of the following messages in the message bar (If
the message bar is enabled previously):
1. serial mode
2. hid mode
3. Name of the inserted storage device. i.e. SD mode
4. hdmi mode
5. bluetooth mode
6. mass storage mode
8. Start the PC utility (Optional).

Graphiti –User Manual Version 1.0
Orbit Research 10
To power Off the device, follow the steps mentioned below.
The device can be turned off by pressing the power button for 2 seconds. On
pressing the power button, the device
1. Emits two short vibrations
2. Displays “shutting down” message for 5 seconds and then disappears.
(Please note, the power off time is 15-20 seconds after the message
disappears.)
3. Sets all the pins on the display to home position (below the surface).
The unit emit vibration pulses once every two seconds while powering off. After
the device is shut down completely, it again gives two short vibrations and turns
off the green LED.
The unit will enter the ghost mode if the charger is plugged and you turn off the
device. During Ghost mode, the device will automatically shut down once it is
fully charged or if the charger is removed.
Pressing the power off key for 10 seconds will turn off the device forcefully.
6.1 Reset
Following are the ways to reset or turn off the system.
To…
Do this on the Device
Reboot System (Up to unit -11)
Press and hold the Down Arrow key and
tap the Dot 8 key
Reboot System (Unit -12 and later
units)
Press and hold the Dot 8 key and tap the
Power button
Turn Off the System Forcefully
Press Power key for 10 seconds
6.2 Sleep
This feature puts the device into the low power consumption mode if there is no
user activity for 50 minutes while in standalone mode. Device can be put in sleep
mode manually by tapping the power button while in remote or standalone mode.
Sleep time-out is configurable from the preference menu.
Once the device enters sleep mode, it clears the display content and turns off the
green LED with a single short vibration. However, you can configure settings in
preference menu to retain the display content as and when the device enters
sleep mode.
To exit the sleep mode, tap the power button. The LED turns green with a single
long vibration pulse. The device resumes its last activity or shows the last
opened file from the storage media if it was in local mode. Similarly, if it was in
USB HID, VCP (Serial) or HDMI mode, it will display the last opened file.
Note: