HARDKERNEL ODROID-XU4, Руководство пользователя

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ODROID-XU4 USER MANUAL
vices will be advertised as a “no device driver required” model.
Direct UART to MIDI interface: Since MIDI is a asynchronous serial
interface, standard serial ports can often be easily converted to a MIDI
interface.
Sound Cards and Devices for MIDI File Playback on the XU4
Not all sound cards and modules provide native MIDI file play-
back capability, including the ODROID USB sound card. Many other
USB sound cards do however, so make sure to consult the device’s
specifications. Professional-level USB MIDI synthesizers are also
available, including sampling synths by Roland, Ensoniq, Kurzweil,
Roland, and Korg.
Experimental Music with the XU4
Using an ODROID-XU4 for computer music opens up possibilities
beyond those of traditional computer music performance, productions,
and engineering. A MIDI Interface and any number of sensors could be
used to create unique musical instruments. For example, a pressure
transducer could be used as a MIDI breath controller, ultrasonic trans-
ducers could be used to make a Vulcan Lute, a string-less harp, or a
super-theremin, or a capacitive touch controller such as the Freescale
MPR121. Using conductive paint for the capacitive inputs could inspire
even more interesting inventions.
Android
Android is an easy-to-use, yet powerful operating system, in-
tended for smartphones, tablets and other portable devices It also
runs very well on the ODROID-XU4, not only as an inexpensive test-
ing platform for building Android applications, but also as a set-top
box for video and music streaming and playback, a general-purpose
operating system capable of web browsing, social networking, remote
control of other computers, and much more.
Desktop Environment
The Hardkernel Android image offers several Android tablet fea-
tures, including two pulldown menus at the top of the screen. As shown
below, the top left menu shows notifications and application informa-
tion. The top right menu offers direct access to the operating system
settings. To open the applications menu, click on the circle with the
six dots, which displays an alphabetical list of all installed apps. The
Recent menu shows the recently opened applications. Power Options
allows you to reboot, shutdown the device and put it in airplane mode,
which disables all wireless functions, including Bluetooth.
Chapter 3