#Bluetooth framework for teaching #vmvwiki #vmvhw

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This post will be a record of things I discover while trying to set up a Bluetooth framework for teaching (so this post will actually be more like a wiki and change!)

1. Speakers.

2. Mouse.

Configuration issues

Problem: Device disconnects

It appears that by default Windows power saving kills a USB device. The mouse connected would die and not reconnect. To disable this you need to

  1. go to Start > type in “Device Manager” >
  2. Expand Bluetooth Radios >
  3. Right click on Generic Bluetooth Adaptor + Properties, and
  4. uncheck “Allow the computer to turn off this device to save power”


What is USB isochronous data transfer? #vmvwiki #vmvhw

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Have been trying to connect a web cam via an enhanced USB cable, but the audio is not very clear. Some discussion with JJ revealed that USB has different ways it transfers data.
isochronous is one way, and looks like my enhanced cable does not support this (I tried a non enhanced one and the audio was heaps better)
Check out http://en.wikipedia.org/wiki/USB  for more info on USB.
Our next solution is to try and use a
Webcam>USB-Ethernet Adaptor>Ethernetcable>USB-Ethernet Adaptor>PC
Apparently this will allow up to 100m extension which should be enough for my classroom web cam.
Next stop is to find a pair of inexpensive USB-Ethernet adaptors !

PC Mouse Bike

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PC Mouse BikeBit of a hard case Bike Mouse that records your typing speed by making the mouse go faster. A while ago I bought a a USB PC Mouse Bike. Searched the web for some drivers, but eventually found them on an old Hard Disk Drive.

For others looking for the drivers here they are:  mouse bike installation.zip

And I have it working on a Windows 7 machine. This is what I did:

Don't plug in the mouse and run set-up.

Then plug in the bike mouse. The drivers will try to install through Windows Update (the USB Bridge one will fail) Had to go to Control Panel > Device Manager > then locate the device with the error (USB bridge I think) . Click on Driver > Update Driver > Browse my Computer and get Windows to search the Driver Folder in the Mouse Bike Installation folder.

Run "Launch Mouse Bike" from the desktop and all going well the mouse should fire up.

If you open up Notepad the counter will show the Words per minute…


Task manager in Windows 7/Vista now Ctrl+Shift+Esc

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The old ctrl+Alt+Del has been changed to Ctrl+Shift+Esc (who knows why??)


You can also right click on the task bar and select task manager

Black (Blank) screen on Laptop (Backlight Inverter)

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Issue: Have a problem with a laptop when screen went blank.

Quick check: If you shine a strong torch at the screen is there an image?

Possible problem: Backlight inverter

Apparently a common problem is a faulty backlight inverter. One quick test is to shine a torch onto the screen to see if the image is actually still there. On ours we used a Big dolphin torch and the image was still there. So have sourced a backlight inverter from trademe ( bwl http://www.trademe.co.nz/Members/Listings.aspx?member=512606 ) will update blog to show progress.

For Compaq there is a fix-it video “Replacing the laptop backlight inverter” on http://www.youtube.com/watch?v=ucaJA324hbg

Well that didnt work so back to Dr Google

Possible problem: CCFL lamp

Possible problem is the CCFL lamp. This is much trickier to repair… we may give this a go to.. who knows and we’ll learn heaps as well.


Possible problem: Cables

Other resources:

Adding an RSS Feed to Facebook (connecting your blog)

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If you are running a blog and have a facebook account how can you connect them together, so you only have to type stuff in once (in the blog) and it pops up in Facebook?

Ok, so this is got to ba an example of poor “User Interface Design”. I worked this out a month ago, and thought I’d document it.. but couldn’t recall the steps (in spite of just having completed it!)

Anyway, thought I’d have another go today.. and eurika I worked out what to do!!

So follow these steps!!

  1. Click on your name (on the facebook bar at the top of the screen)
  2. Click on the Options link (Just below the [Share] button on the “Whats on your mind window”
  3. If “Stories Posted by You” > Available sites is not showing, click on the settings button (Just below the [Share] button)
  4. On the Available Sites: Click on Blog/RSS
  5. In the Public URL enter your blog site, then click [Import]

.. and thats all!!

This is also where you connect Flickr/Delicious/YouTube etc…

Freeware (donationware) Video Converter

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JJ has found a video converter

Huang, S. (2009) MediaCoder – more than a universal audio/video transcoder. Retrieved June 17, 2009 from http://mediacoder.sourceforge.net/

Jun 2009: google wav and Microsoft Bing

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Some new stuff for this month

PowerPoint 2007 – multiple monitors swap display

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Had an issue when using multiple monitors. When using a monitor attached to my laptop the presentation displayed on the laptop not the external monitor.

Searching the we came up with lots of false hits… and the answer is actually quite simple in 2007.

Use the Slide Show tab and in the Monitor part of the ribbon change the “Show Presentation on” to “Monitor 2…”

No wonder there is no online help !!!

Browser tester (HTML/JavaScript)

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  • Chrome Experiments (Google, 2009)[2] http://www.chromeexperiments.com/
    • Chrome Experiments showcases the applications that require significant data processing using multiple Web pages simultaneously
    • Darrin Fisher, one of the engineering leads for Google Chrome, notes that all of the experiments use just HTML and JavaScript, and are designed to demonstrate what is possible with basic Web technology

(Naone, 2009, March 18)[3]

E, Naone (2009, March 18)Browser Coders Make Chrome Shine. Technology Review. Retrieved March 24, 2009 from http://www.technologyreview.com/web/22315/?a=f

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