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Topics - ros

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Wiimote Interactive Whiteboard / python-whiteboard on slackware linux
« on: December 06, 2011, 01:43:38 AM »

for the sake of completion I thought I should try python-whiteboard, especially as it seems to be more actively developed than gtk-whiteboard (see my post on 3rd December

So I installed python-whiteboard on my linux laptop (slackware 13.37, 3.1.1 kernel, 32 bit, for those who are interested), discovered I needed numpy, so I installed that, and the program ran. I pressed 1+2 when required, and (unlike gtk-wb) the wiimote vibrated when contact was made.

Then my whole screen went white, with 4 x - one in each corner, the top left having a red square around it. In the middle of my screen was a smaller box, very similar to this one which I'm writing in, and at the top in the middle, a message about making something larger or smaller.

I took my tv remote (which had worked with gtk-wb) and tried to calibrate the top left corner, but nothing happened. I clicked furiously at various points on the screen, and in desperation turned the tv remote directly to the wiimote, but nothing.

It crossed my mind that suddenly all the batteries on the wii/tv motes had died, so I killed X (I couldn't get the program to terminate otherwise - the normal <ctrl>-C didn't work), logged in again and tried gtk-wb. It was fine.

Apart from the fact that for some reason it doesn't seem to work on my setup, the other issue is that I can't get the program to terminate without killing my X-server, because it takes over everything.

Have I done something wrong? Missed a step or something. I must confess that I'm quite new to this game. I googled a bit and discovered what might be a similar problem with Mandriva - here is a link:
I start it from the command line, but as soon as contact is made, I can't see my terminal anymore anyway. And I don't know enough about python to start fiddling with the code.

I'm quite happy to explore the world of interactive whiteboards with gtk-wb, but it would be rather satisfying to have tried python-wb as well... so any advice or help would be appreciated.



I have introduced myself on the "say hi" page, so I don't need to type all that stuff in again. I haven't got a problem, well, not really. I just wanted to let people know what works for me.

I have got a laptop running linux with a 3.1 kernel and have discovered it is possible, in theory, to create an interactive whiteboard. I saw Johhny Chung Lee's video, cast it aside because it only worked with MS, and tried the 2 whiteboards mentioned above.

I had a 3.0 kernel running, and neither app could find the wiimote. Nor could wmgui. I upgraded the kernel to 3.1 which has a built in wiimote driver. Wmgui works fine with this kernel.

Uwe Schmidt's java application had some problems with my bluetooth stack (according to the 18 error messages) and ground to an ungraceful halt.

Gtk whiteboard worked just like that. Perfectly. OK, it couldn't find an icon & threw an error message, but it carried on working anyway. As I've only just got it all going, I haven't invested in an IR pen yet - I successfully used the TV remote control.

Now I shall find a way to fix the wiimote in place so it isn't propped up on cushions and invest in an IR pen - I'd present a pretty uncool image with a TV remote...!

So there we are.


Say Hi! / Just popped in to say "hi"
« on: December 02, 2011, 11:47:42 AM »
I'm a new member (surprise surprise), so I thought I'd just say hello from Germany. I teach biology in English in a bilingual gymnasium (=grammar school) in North Rhine Westphalia (sounds quite romantic we're on the Dutch border where the Rhine flows out of Germany and into the NL).

Like most families with teenage children, we have a Wii, which I always thought of as, well, a wii; that thing that my children can't bear to separate themselves from at mealtimes without protest.

I recently went to a presentation on how white boards are slowly creeping in (at great expense) and replacing the blackboard, came home and did a bit of research and discovered that the wiimote had more possibilities than I had hitherto realised.  So here I am. Trying to get all the bits to talk to one another.


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