Gen4 LCD CAPE Range
4.3”, 5.0” and 7.0” LCD CAPE’s
For the Beagle Bone Black
DATASHEET
GEN4-4DCAPE-43
GEN4-4DCAPE-43T
GEN4-4DCAPE-43CT
GEN4-4DCAPE-50
GEN4-4DCAPE-50T
GEN4-4DCAPE-50CT
GEN4-4DCAPE-70
GEN4-4DCAPE-70T
GEN4-4DCAPE-70CT
(4.3” Non-Touch)
(4.3” Resistive Touch)
(4.3” Capacitive Touch)
(5.0” Non-Touch)
(5.0” Resistive Touch)
(5.0” Capacitive Touch)
(7.0” Non-Touch)
(7.0” Resistive Touch)
(7.0” Capacitive Touch)
GEN4-4DCAPE-xxx-SB (Super Bright, All sizes/Touch)
Document Date: 8
th
March 2017
Document Revision: 1.0
Uncontrolled Copy when printed or downloaded.
Please refer to the 4D Systems website for the latest Revision of this document
Contents
1. Description ............................................................................................................................. 4
2. Features ................................................................................................................................. 4
3. Getting Started ....................................................................................................................... 5
3.1. Requirements ......................................................................................................................................... 5
3.2. How to use the GEN4 LCD CAPE ............................................................................................................. 5
3.3. Changing the brightness (Debian) .......................................................................................................... 5
3.4. Calibrating resistive touch (Debian) ....................................................................................................... 6
4. EEPROM Details...................................................................................................................... 6
5. Hardware Drivers ................................................................................................................... 6
6. Display Precautions ................................................................................................................ 6
7. Optional Button Board ............................................................................................................ 7
8. Power Source for 4D CAPE ...................................................................................................... 7
9. Display Module Part Numbers................................................................................................. 7
10. Cover Lens Bezel
–
Tape Spec ................................................................................................ 7
11. Standard FFC cable specifications .......................................................................................... 8
12. Software / Driver Disclaimer ................................................................................................. 8
13. Notes ................................................................................................................................... 8
14. Schematic Diagram (4D CAPE) ............................................................................................... 9
15. Schematic Diagram (4DCAPE Adaptor)................................................................................. 10
16. Schematic Diagram (4DCAPE Button Board
–
OPTIONAL) ..................................................... 11
17. Mechanical Details
– 4.3” (Non-Touch
& Resistive Touch) .................................................... 12
18. Mechanical Details
– 4.3” (Capacitive Touch)
....................................................................... 13
19. Mechanical Details
– 5.0” (Non-Touch
& Resistive Touch) .................................................... 14
20. Mechanical Details
– 5.0” (Capacitive Touch)
....................................................................... 15
21. Mechanical Details
– 7.0” (Non-Touch
& Resistive Touch) .................................................... 16
22. Mechanical Details
– 7.0” (Capacitive Touch)
....................................................................... 17
23. Mechanical Details (4DCAPE Adaptor) ................................................................................. 18
24. Mechanical Details (4DCAPE Button Board
–
OPTIONAL
–
BUILT ON REQUEST ONLY) ............ 19
25. Specifications ..................................................................................................................... 20
26. Hardware Revision History (4D CAPE) .................................................................................. 22
27. Hardware Revision History (4D CAPE Adaptor) .................................................................... 22
28. Ordering Information .......................................................................................................... 23
29. Legal Notice ........................................................................................................................ 24
30. Contact Information............................................................................................................ 24
4D SYSTEMS
GEN4 LCD CAPES
–
BEAGLE BONE BLACK
1. Description
The gen4 LCD CAPE range is specifically designed for
the Beagle Bone Black*
(BBB), and provides a 4.3”,
5.0” or 7.0”
primary display for the BBB for direct
user interaction and information display.
Available in both Resistive Touch (GEN4-4DCAPE-
xxT), Capacitive Touch (GEN4-4DCAPE-xxCT) and
non-touch (GEN4-4DCAPE-xx) via special request
–
the non-touch version may be subject to MOQ.
(xx refers to 43, 50 and 70 accordingly)
The 4DCAPE is
not
compatible with the previous
Beagle Bone (Beagle Bone White), and can only be
used with the Beagle Bone Black.
The 4DCAPE features an on-board Microchip
AR1021 resistive touch controller (Resistive Touch
version only), which talks to the BBB over I2C. This
enables a robust and reliable resistive touch
platform, compared to previous 4DCAPE models
which used the BBB’s analog inputs, which were
prone to external noise and open source software.
The Capacitive Touch version utilises a Focaltech
capacitive
touch
controller,
which
also
communicates over I2C.
The Beagle Bone Black connects directly on to an
adaptor CAPE, which then connects to the display
module using a 30 way FFC ribbon cable, enabling
multiple mounting options. Everything the LCD
CAPE requires such as power and display signals are
provided from the BBB directly, via the Adaptor and
FFC ribbon cable.
The gen4 LCD CAPE features an optional push
buttons connector, providing capability for an
external button board. Please contact Sales
regarding this item, it is a special-order item only.
Mounting of the 4DCAPE is achieved with the 4x
4mm mounting holes present on the Display
Module (Resistive and Non-Touch), enabling
standard screws to fasten the GEN4 4DCAPE as
required, or via the adhesive supplies on the Cover
Lens Bezel which is part of the Capacitive Touch
version.
Note (*):
The Beaglebone, Beaglebone Black and
Beagleboard
remains
the
property
of
beaglebone.org. All references to the words
Beaglebone, Beaglebone Black, Beagleboard are
licensed under a Creative Commons Attribution-
Share Alike 3.0 license.
2. Features
•
4.3”, 5.0” and 7.0” TFT LCD CAPE options for the
Beagle Bone Black
•
Available in 3 models, Resistive Touch (GEN4-
4DCAPE-xxT), Capacitive Touch (GEN4-4DCAPE-
xxCT) and Non-Touch (GEN4-4DCAPE-xx) where
xx is 43, 50 and 70.
•
480x272 Resolution 4.3” TFT LCD Display, or
800x480 Resolution 5.0” and 7.0” TFT LCD
Display
•
7 optional push buttons via external button
board is available on request, enabling LEFT,
RIGHT, UP, DOWN, ENTER, RESET and POWER
functionality. This push button board is only
available on request and is made to order.
•
EEPROM CAPE ID selection via DIP switch
•
4x 4.0mm Mounting holes on Non-Touch and
Resistive Touch modules, or via adhesive for
Capacitive Touch model.
•
RoHS and CE Compliant.
GEN4 4D CAPE Adaptor
GEN4 4D CAPE 4.3” Resistive Touch Display
©
2017 4D SYSTEMS
Page 4 of 24
www.4dsystems.com.au
4D SYSTEMS
GEN4 LCD CAPES
–
BEAGLE BONE BLACK
not supply power to the 4D CAPE unless the
Solder Bridge jumper on the top of the 4DCAPE
Adaptor board, is cut and resoldered.
(Discussed further in a later section)
Once power is connected, something should be
displayed on the 4DCAPE a few moments after
it has started to boot. Each distribution will
behave differently and require different input
from the User. It is recommended to have a
keyboard attached while setting the system up,
as login details etc may be required. Some
distributions may prompt for LCD calibration,
while
others
may
prompt
for
Username/Password.
3. Getting Started
3.1. Requirements
The gen4 LCD CAPE’s are designed to work with the
Debian Operating System supplied for the Beagle
Bone Black. It could however be adapted to work on
other distributions by the User.
The Requirements for use are:
•
GEN4 LCD Cape + Adaptor + FFC Cable
•
Beagle Bone Black (BBB) with suitable
distribution loaded
•
5V DC Supply suitable for the Beagle Bone Black
(using DC Jack), recommended 2A @ 5V.
•
A Stylus is recommended for accurate touch,
however is not required.
7.
For support of the BBB and various distributions,
please seek support from the respective websites
associated with the BBB itself or the distributions –
See Section 5.
A good place to start for information and support
regarding the BBB and various distributions
available, is
www.beagleboard.org
This website details the latest firmware images for
the BBB:
http://beagleboard.org/latest-images
This website details how to get started with the
BBB:
http://beagleboard.org/getting-started
For support regarding the 4DCAPE hardware itself,
please go to the 4D Systems website and either
contact Support directly via a Ticket, or use the 4D
Systems Forum.
http://forum.4dsystems.com.au
3.2. How to use the GEN4 LCD CAPE
The following steps should be all that is required to
use the GEN4 4DCAPE:
1.
Connect the 4DCAPE Adaptor to the Beagle
Bone Black while the Beagle Bone Black is not
powered.
Connect the 30 way FFC cable to the 4D CAPE
Adaptor, and to the 4DCAPE Display. The 30
way FFC connectors are ‘Upper Contact’
meaning the blue stiffener on the FFC cable
should be against the PCB, with the metal pads
on the cable facing upward.
If using with other capes on your BBB, ensure
the 4DCAPE is not conflicting pin wise to any
other cape installed.
Ensure the EEPROM ID Jumper on the CAPE is
set to a different EEPROM ID to any other
capes.
Ensure your Beagle Bone Black is loaded with a
suitable Linux distribution which is compatible
with 4D Systems 4DCAPE’s. Debian is the
distribution shipping with current BBB boards
now, and can be installed onto older BBB’s. If
the distribution you wish to use is not
supporting 4D Systems 4DCAPE’s by default,
the supplied source files can be used, please
refer to our Product Page.
Connect a 5V Supply to the DC Jack of the
Beagle Bone Black. It is recommended to use a
2A supply to ensure sufficient supply. By
default, the 4DCAPE requires power via the DC
Jack, as the on-board power management of
the BBB may be overloaded depending on
other systems installed. So, the USB jack will
2.
3.
3.3. Changing the brightness (Debian)
It is possible to change the backlight brightness as
the backlight is PWM controlled.
Please note, these instructions may become
obsolete as new versions of Debian are released, or
if different distributions are used.
One method is to SSH into the Beaglebone Black
from your PC, and set the backlight value that way.
Note this does not persist over restarts, so this
would need to be entered into a startup script if the
setting is required to be set each startup.
At the command prompt, type the following:
# sudo su
# cd /sys/class/backlight/backlight
# echo 50 > brightness
4.
5.
6.
©
2017 4D SYSTEMS
Page 5 of 24
www.4dsystems.com.au
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