User manual

4D SYSTEMS Armadillo-43(T) – Linux based Computer Display Module
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Armadillo-43(T) – Linux based Computer Display Module
6. How To…
Here are a few examples of how to use the
Armadillo.
Note: Most instructions in this section are relevant
only for the 4D Systems Raspbian image, as
Armadillo-config is not supported on 3
rd
part
Raspbian distributions.
Armadillo Configuration Tool 6.1.
Built into the 4D Systems Image for the Armadillo,
is a custom 4D Systems tool called Armadillo-
Config.
This tool does a lot of the hard work in regards to
the configuration of some core settings, and
enables these settings to be configured from the
touch screen display, so an external
keyboard/mouse is not required.
To run Armadillo-config from the X GUI, simply
select it from the Start Menu.
To run Armadillo-config from Terminal, it needs to
be run as root, simply type:
sudo armadillo-config
Configuration of WiFi, Ethernet, Touchscreen
Calibration, Option to Boot to X Windows or to
Terminal, Configuring what the User Button does,
Adjusting the scaling (resolution) of the display,
Rotating the display, along with many other
features are possible from this neat tool.
Connect to the Internet 6.2.
The Armadillo does not feature any on board
peripherals to enable Internet Connection itself,
however it does offer a single USB Port which can
be used to connect to external network devices.
This USB Port can be used to connect to
networking peripherals such as USB Ethernet
dongles, USB Wifi dongles and various other
networking hardware.
Armadillo-config can be used to set up the WiFi
network, configured using the Armadillo’s touch
screen. This tool can be launched from the X GUI
or from Terminal, and is self-explanatory in its use.
Simply go to the WiFi or Ethernet sections of the
tool (if you have hardware connected to suit), and
enter the required information using the touch
screen display, or using an external
keyboard/mouse.
You will need to restart the Armadillo for these
changes to take effect.
To run Armadillo-config from the X GUI, simply
select it from the Start Menu.
To run Armadillo-config from Terminal, simply
type:
sudo armadillo-config
Setting the Serial UART for User Control 6.3.
By default the on board Serial UART on the
Armadillo-43T is used by the Linux system as a
debug console, and can be used to log into the
Armadillo-43T or for controlling the system, rather
than having a USB Keyboard connected. In order
to use this Serial UART for other purposes, such as
inside a Python application, the Serial UART needs
to be disconnected from the linux system, so it is
available to the User.
This can be achieved by editing the cmdline.txt file
which is found on the DOS/FAT partition of the
microSD card.
From terminal, launch leafpad (or your chosen
editor) with root:
sudo leafpad /boot/cmdline.txt
Remove the following text (LEAVE everything else
intact):