Monday, November 30, 2009

Win32 Disk Imager

https://wiki.ubuntu.com/Win32DiskImager

This is a GUI interface program, which can be used in windows in order to read and write images from SD card. It can also be used to write boot images, on a USB drive. This program can save an SD card image in .img format, so that one does not have to repeat the image building process all over again, such as partitioning SD card, coping root files.

Boot images and SD card images are used on the beagle board in order to run demos. Storing images in an SD card is handy. It enables an user to switch demos, by switching the SD card with another with a different image.

Video-Whale Project

http://gstreamer.freedesktop.org/apps/videowhale.html

This project is about video-wall which uses a combined power of GStreamer, and Xinerama. In this project, every group of 4 monitors are controlled by one machine.

Beagle board is easy to transport and it has a capability of a PC. Controlling a group of 4 monitors using beagle board needs less room and is handy. Beagle board is also capable of producing HD graphics.

The same thing might be possible with Bealge Board. On the IRC channel, # bealge, IRC nicks koen, av500, were discussing about it.
The discussion thread can be found at http://www.beagleboard.org/irclogs/index.php?date=2009-11-23#T13:03:01

Beagle Board Experiments

http://sites.google.com/site/puppyswebsiteA/Home

The above link is IRC nick, puppy's website. The link has some experiments conducted by puppy on beagle board. One of his experiments is Beagle Board, with external power supply, 4-port USB hubs, ┬ÁChameleon board, and a audio amplifier.
Audio amplifier is a useful tool in order to improve the quality of the sound output from beagle board, since beagle board does not have its own amplifier.

An OTG switch showed in the above link can be used to switch between beagle board becoming an end device or a server.

One of his experiments also consists of a low acceleration 3 dimensional G-force acceleration sensor, which can be used to make a 3D mouse. The X-axis and Y-axis can be used to move the mouse. The Z-axis can be used to zoom in / zoom out.
One useful application for this experiment can be using beagle board, as a presentation tool because of its 3-dimensional G-force acceleration sensor. For example, presenting a 3D drawing on a projector. This can enable a user to move, rotate, zoom in/out the drawing while presenting instead of going near the computer in order to do these type of operations.

Puppy is focused on using Data Acquisition boards to build and test circuits using a reprogrammable environment. They do not need any spealized kind of environment, so using Beagle Board gives portability.

LED Blink

http://elinux.org/BeagleBoardOpenOCD#LED_blink_example

Beagle Board has a series of LED lights. Those can be tested using the LED blink test program, which can be found on the link posted above.
It might be possible to create your own LED flashing pattern.
LED flashing pattern can also be used as a status indicator. One way is that it can be used to indicate whether a particular event has occurred such as boot completion. It can also be used to indicate status of a particular resource such as network connection, bluetooth connection, error detection.

One usage I can think of for this LED blink program is that, it enables an user to use a beagle board outdoors without having to use a laptop or a monitor to see whether a particular program is ready or not.

On the IRC channel, # beagle, IRC nicks GrizzlyAdams, Nader, were discussing about it. The thread can be found at http://www.beagleboard.org/irclogs/index.php?date=2009-11-19#T06:01:50

Thursday, November 19, 2009

Realtime Kinematic GPS Receiver

http://gizmodo.com/5405804/make-your-own-real-time-kinematic-gps-receiver-thats-accurate-to-one-centimeter

Researchers Tomoji Takasu and Akio Yasuda of Tokyo university have made a GPS receiver that is accurate to a centimeter. It displays real time information. They used beagle board as a processor.

On the link posted below, there are also instructions on how to make one yourself
http://gpspp.sakura.ne.jp/rtklib/rtklib_beagleboard.htm

Evtest

http://wiki.davincidsp.com/index.php/Evtest
The above link has code and instructions for conducting an Evtest.
Evtest is an open source tool, that can be used to test several different HID drivers and devices such as mouse, keyboard, joystick, touchpad.
Evtest can enable a user to test a particular HID device on beagle board.

It enables an user to test a particular HID device thoroughly such as testing all the keys of a USB keyboard or testing all the axes of a USB mouse.

Instructions regarding how to execute and use Ev test are on this link:
http://wiki.davincidsp.com/index.php/Evtest

In the IRC channel # beagle, IRC nicks super, and prpplague were discussing about it.
The discussion thread can be found at:
http://www.beagleboard.org/irclogs/index.php?date=2009-11-13#T20:11:34

ETech Day Nov. 17th, 2009

http://wiki.omap.com/index.php/ETechDays_Community_Lightning_Talks

The link above is from TI ETech Days. It has topic covered during the lightning talks on Nov. 17th, 2009 and Aug. 27th, 2009.

Several interesting topics were presented. Some of them are:
Android, Gnome, XBMC, Ubuntu, Leopard board, MontaVista Linux 6, Symbian, Hawk Board.

Friday, November 13, 2009

Evas 3D





This videos are about evas 3D which can be played on beagle board. The IRC nicks, raster, ds2, and puppy were discussing about it on the IRC channel # beagle.

The disscussion thread can be found at:
http://www.beagleboard.org/irclogs/index.php?date=2009-11-12#T04:14:18

Evas 3D can be used to demonstrate the graphical capabilities of Beagle Board.

Minicom in Windows

Minicom can be run on windows. av500, adj, and puppy were talking about it on IRC channel # beagle. They were talking about the set-up needed in order to run minicom in windows.

The discussion thread can be found at:
http://www.beagleboard.org/irclogs/index.php?date=2009-11-11#T14:28:15

Here are some tips and instructions about using Minicom:
http://en.wikipedia.org/wiki/Minicom

Monday, November 9, 2009

Arago Project

http://arago-project.org/wiki/index.php/Main_Page

The Arago Project targets TI platforms Omap3 and DaVinci. The main goal of the Arago project is to create a product that would be approached by an experienced embedded developer that is new to the Linux Eco-System. At the same time the Linux savvy developer should be able to see how the system was created and be able to tune, change, or expand upon it. This is an overlay of for OpenEmbedded and Angstrom.

Head Mounted Computer

http://hackaday.com/2009/10/26/head-mounted-computer/

You can find out more about the gumstix Overo Fire module at http://www.gumstix.com/store/catalog/product_info.php?products_id=227

One of the topics mentioned on the IRC channel # beagle was about using beagle board for head mounted computer. The discussion can be found on this link http://www.beagleboard.org/irclogs/index.php?date=2009-10-29#T22:18:47

Touch Screen digital dashboard




This is a video of a touch screen digital dashboard on a bike. In the IRC channel, Quan-Time, the creator of this interface was talking about doing the same thing on beagle board. http://www.beagleboard.org/irclogs/index.php?date=2009-10-31#T10:23:24

Some equipments used:
1) http://megatunix.sourceforge.net/ Tunning software for gauges
2) http://www.smartvm.com/DVI-D-to-VGA-Converter-P7556.htm DVI-D to VGA convertor.
3) https://www.xenarcdirect.com/product.php?productid=16194 7" touchscreen LCD monitor.

NOTE: Expansion board to install VGA port on beagle board can be found at http://www.beagleboardtoys.com/