View source for Oregon State Wireless Active Learning Device

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{{notability|date=May 2017}}
{{third-party|date=May 2017}}
{{Orphan|date=May 2017}}
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{{use dmy dates||date=February 2021}}
The '''Oregon State Wireless Active Learning Device''' ('''OSWALD''') is an open source learning platform developed by students of the [[Oregon State University]] to allow undergraduate students of [[computer science]] to obtain first experiences through direct technical contribution.<ref>{{Cite web|url=http://beaversource.oregonstate.edu/projects/cspfl/wiki/WikiStart|title=OSWALD Hand-held Computer - Trac|date=2009-11-18|access-date=2017-05-05|url-status=bot: unknown|archiveurl=https://web.archive.org/web/20091118053334/http://beaversource.oregonstate.edu/projects/cspfl/wiki/WikiStart|archivedate=2009-11-18}}</ref><ref>{{Cite web|url=https://www.kevinkemper.com/project-oswald|title=Kevin Kemper's Portfolio - OSWALD|website=Kevin Kemper's Portfolio|language=en|access-date=2017-05-05}}</ref>

The device is capable of common tasks such as browsing through the internet, instant messaging and playback of multimedia content.<ref>{{Cite news|url=http://oregonstate.edu/dept/ncs/lifeatosu/2009/inventive-education-research-with-an-edge/|title=Inventive Education: Research with an edge - LIFE@OSU|date=2009-03-19|work=LIFE@OSU|access-date=2017-05-05|language=en-US}}</ref><ref>{{Cite web|url=http://osuosl.org/blog/osl-talks-oswald-and-ganeti-open-source-bridge/|title=OSU Open Source Lab {{!}} Oregon State University|website=osuosl.org|language=en|access-date=2017-05-05}}</ref> It can also support [[Java (software platform)|Java]] and [[USB]].
[[File:OSWALD - Front side.jpg|alt=OSWALD seen from the front after booting.|thumb|500x500px|OSWALD seen from the front after booting.]]

== Software ==

=== Operating system ===
The kernel of the system is linux based. Any software needs to be built by the students themselves through a compilation of [[BitBake]] recipes which are managed by [[OpenEmbedded]]. The installation requires a correctly formatted SD card containing the [[bootable]] build.

=== Java ===
OSWALD is capable of running [[Java code]]. Java files can be compiled on the device or delivered  as compiled [[.class]] files. A network access can be established through standard Sockets and ServerSockets, since the wireless interface supports IP.

== Hardware ==
The systems main processor is the [[Texas Instruments]] OMAP3530 running with 500&nbsp;MHz. The graphics processor is the SGX530 for 2D and 3D graphics. Physical space is limited by 128 Mbyte DDR-SDRAM with a clock speed of 266&nbsp;MHz. There is also a 256 Mbyte NAND flash memory. The display is a resistive touchscreen having a DVI out with a resolution of 1024x768 (HD). Speakers are the Texas Instruments TLV320AIC33 stereo.

The touch screen, buttons and a built in accelerometer are handled via microcontrollers that contain software. The Cypress CY8C24794 handles the controls of the touchpad and button inputs. The Atmel ATMega48 monitors the accelerometer. A Texas Instruments cc2431 is used as a wireless interface (802.15.4 wireless supported).

==References==
{{Reflist}}

[[Category:Oregon State University]]
[[Category:Linux-based devices]]