4D 4.3” LCD CAPE
DATASHEET
Beagle Bone Black 4.3” LCD CAPE
Document Date: 17
th
December 2015
Document Revision: 1.20
Uncontrolled Copy when printed or downloaded.
Please refer to the 4D Systems website for the latest Revision of this document
Contents
1. Description ............................................................................................................................. 3
2. Features ................................................................................................................................. 3
3. Getting Started ....................................................................................................................... 4
Requirements ......................................................................................................................................... 4
How to use the 4D 4.3” LCD CAPE .......................................................................................................... 4
Changing the brightness (Angstrom) ..................................................................................................... 4
Changing the brightness (Android) ........................................................................................................ 5
Android Information .............................................................................................................................. 5
Calibrating resistive touch (Angstrom) ................................................................................................... 5
4. EEPROM Details...................................................................................................................... 5
4DCAPE-43 EEPROM .............................................................................................................................. 5
4DCAPE-43T EEPROM ............................................................................................................................ 5
5. Software / Driver Disclaimer ................................................................................................... 6
6. Notes ..................................................................................................................................... 6
7. Schematic Diagram – HW REV 1.1............................................................................................ 7
8. Schematic Diagram – HW REV 1.3............................................................................................ 8
9. Mechanical Details ................................................................................................................. 9
10. Ordering Information .......................................................................................................... 10
11. Legal Notice ........................................................................................................................ 11
12. Contact Information............................................................................................................ 11
4D SYSTEMS
4D 4.3” LCD CAPE – BEAGLE BONE BLACK
1. Description
The 4D 4.3” LCD CAPE is a cape specifically designed
for the Beagle Bone Black (BBB), and provides a 4.3”
primary display for the BBB for direct user
interaction and information display.
Available in both touch (4DCAPE-43T) and non-
touch (4DCAPE-43).
The 4DCAPE-43 is
not
compatible with the previous
Beagle Bone (Beagle Bone White), and can only be
used with the Beagle Bone Black.
The 4D 4.3” LCD CAPE features a 4.3” TFT LCD
480x272 resolution display.
The 4DCAPE-43 utilises the drivers developed for
the CircuitCo LCD4, however provides a different
form factor and pricing point to the LCD4.
The Beagle Bone Black connects directly to the back
of the 4DCAPE-43(T), and provides everything the
CAPE requires such as power and display signals.
The 4D 4.3” LCD CAPE features 7 push buttons
below the screen, LEFT, RIGHT, UP, DOWN, ENTER,
RESET and POWER, along with 2 LED’s to indicate
Power and User Status (normally heartbeat).
Mounting of the 4DCAPE-43(T) is achieved with the
4x 3.5mm mounting holes present on the CAPE,
enabling standard M3 or #6-32 screws to fasten the
4DCAPE-43 as required.
2. Features
•
4.3” TFT LCD CAPE for the Beagle Bone Black
•
Available in 2 models, Resistive Touch (4DCAPE-
43T) and Non-Touch (43CAPE-43)
•
7 push buttons including LEFT, RIGHT, UP, DOWN,
ENTER, RESET and POWER
•
2 LED Lights for Power and User
•
2x2 Jumper with shunts for EEPROM CAPE ID
selection
•
Module dimensions: 120.4 x 80.0 x 24.8mm
•
Module dimensions with Beagle Bone Black
connected: Approx 120.4 x 80.0 x 32.0mm
•
4x 3.5mm Mounting holes
•
RoHS and CE Compliant.
©
2015 4D SYSTEMS
Page 3 of 11
www.4dsystems.com.au
4D SYSTEMS
4D 4.3” LCD CAPE – BEAGLE BONE BLACK
utility is closed, it is available again under the
System – Administration menu.
Complete – the Angstrom desktop should be
displayed on the 4DCAPE-43(T) and is ready for
use, else Andoid etc.
3. Getting Started
8.
Requirements
The 4D 4.3” LCD CAPE is designed to work with
existing software and drivers already developed for
the Beagle Bone Black.
The Requirements for use are:
4DCAPE-43 or 4DCAPE-43T Cape
Beagle Bone Black (BBB) with suitable
distribution loaded
5V DC Supply suitable for the Beagle Bone
Black, recommended 2A @ 5V.
A Stylus is recommended for accurate touch,
however is not required.
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 how to update your software
on the BBB to the current version of Angstrom
available for the BBB
http://circuitco.com/support/index.php?title=Upd
ating_The_Software
This website details how to update your software
on the BBB for the current version of Andoid.
http://downloads.ti.com/sitara_android/esd/TI_A
ndroid_DevKit/TI_Android_JB_4_2_2_DevKit_4_1_
1/index_FDS.html
For support regarding the 4DLCD-43(T) CAPE
hardware itself, please go to the 4D Systems
website and either contact Support directly, or use
the 4D Systems Forum.
www.4dsystems.com.au
How to use the 4D 4.3” LCD CAPE
The following steps should be all that is required in
order to use the 4DCAPE-43(T):
1.
Connect the 4DCAPE-43(T) to the Beagle Bone
Black while the Beagle Bone Black is not
powered. Outline of the BBB is printed on the
back of the 4DCAPE-43(T) as a guide for
orientation.
If using with other capes, ensure the 4DCAPE-
43 is not conflicting pin wise to any other cape
installed.
Ensure the DIP Switch 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 the existing CircuitCo LCD4 CAPE or 4D
Systems 4DCAPE-43(T) – See Section 5.
Angstrom release 20.06.2013 or later is
recommended. Android 4.2.2 has also been
tested and functions correctly. Other
distributions may also be compatible with this
display.
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.
Once power is connected, something should be
displayed on the 4DCAPE-43(T) as it is booted.
Once booted, the system should automatically
log in (assuming Angstrom Linux distribution is
used), and the Touch Screen Calibration Utility
should load automatically. If using the 4DCAPE-
43 without touch, this can be exited and
ignored.
Calibrate the 4DCAPE-43(T) using the utility by
following the on screen instructions. If the
2.
3.
4.
Changing the brightness (Angstrom)
By default the backlight brightness of the 4D CAPE
4.3 is set to 50% with Angstrom distribution
(20.06.2013). 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 Angstrom 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:
cd /sys/class/backlight/backlight.10/
echo 100 > brightness
5.
6.
7.
Where 100 represents 100%, this can be changed
to any number from 0 to 100 as required.
©
2015 4D SYSTEMS
Page 4 of 11
www.4dsystems.com.au
4D SYSTEMS
Changing the brightness (Android)
Changing the brightness on Android is simple.
Navigate to the Settings menu, and to the Display
option, and then to Brightness. Slide the slider to
the desired position.
4D 4.3” LCD CAPE – BEAGLE BONE BLACK
4. EEPROM Details
On the 4D 4.3” LCD CAPE there is an EEPROM which
is used to configure the Beagle Bone Black with the
appropriate configuration in order to use the Cape.
Depending if the board is a 4DCAPE-43 or a 4DCAPE-
43T the EEPROM contents will vary slightly.
Please note:
some EEPROM content refers to the
LCD4 which is made by CircuitCo. This is the case
due to how the BBB identifies the CAPE and what
drivers to apply to it. Since the 4DCAPE-43(T)
utilises the LCD4 drivers, this must be the case.
Android Information
The 4DCAPE-43(T) is compatible with Android 4.2.2
and has been tested with an image from TI (see
section 3.2).
It has been noticed however that the EEPROM
Jumpers both need to be connected/closed
otherwise the CAPE may not be detected by the
Android OS.
4DCAPE-43 EEPROM
EEPROM Support: YES
Board Name: 4D 4.3 LCD CAPE - 4DCAPE-43
Manufacturer: 4D Systems
Calibrating resistive touch (Angstrom)
When a distribution is used for the first time with a
4DCAPE-43T, the default calibration application
that comes with the Angstrom distribution is
started automatically (Refer to section 3.2) on
startup of Angstrom. If the calibration is however
input incorrectly and it is required to be set again, a
file must be deleted manually in order to then
recalibrate the display.
Note, this may change as newer distributions of
Angstrom become available, or if different
distributions are used, so these instructions may
become obsolete or inaccurate.
One method is to SSH into the BBB using your PC,
navigate to the following folder and delete the
specified file.
/etc/pointercal.xinput
4DCAPE-43T EEPROM
EEPROM Support: YES
Board Name: 4D 4.3 LCD CAPE - 4DCAPE-43T
Manufacturer: 4D Systems
One this file has been deleted, the calibration utility
can be run again.
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.
All references to CircuitCo and LCD4 remain the
property of CircuitCo and beagleboardtoys.org and
are not affiliated to 4D Systems in any way.
©
2015 4D SYSTEMS
Page 5 of 11
www.4dsystems.com.au
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