Wiimote Project

Wiimote Projects => Wiimote Interactive Whiteboard => Topic started by: Pascal M on March 22, 2008, 06:00:25 AM

Title: Handwriting with the IR Pen on the Whiteboard is awful
Post by: Pascal M on March 22, 2008, 06:00:25 AM
After spending quite some time getting the whole setup to work, I find that the handwriting on the board is almost unusable in a teacher classroom. It is not smooth and linear at all, but appears in steps and is distorted, whether I use Paint or any other small editor. I suspect this is linked to the Wiimote resolution, but I'm not sure: 1024*736 sounds reasonable to me for handwriting on the board. So is there hope that this is actually linked to the IR Pen, i.e. LED or battery that I've used, or to the positioning of the Wii versus the screen. I have placed it on top of the projector and tried distances from 2 meters to 3 meters. Our NGO was hoping to use it for a distant learning projects in emerging countries but this won't make it unless I solve this problem.
Title: Re: Handwriting with the IR Pen on the Whiteboard is awful
Post by: UndCon on March 22, 2008, 11:33:40 AM
To me the setup is very important - tiral and error gave me a good result...
Title: Re: Handwriting with the IR Pen on the Whiteboard is awful
Post by: fiftybottles on April 22, 2008, 06:15:07 PM
remeber, the wiimote has a 45 degree viewing angle. try positioning it in different places. and, heck, i know just how annoying this can be! after playing Brain Age with one of those makeshift, now stealable pens that the stores use when they put up demos of DS games in their store. Heck, i couldn't even write a 5 or the letter E! awful....... just awful.... anyways, if you tweak the position and maybe put the resoulution on your pc to the same as the wiimote's resolution, you might get it to work! :D
Title: Re: Handwriting with the IR Pen on the Whiteboard is awful
Post by: Nashev on June 08, 2008, 04:27:36 PM
By the way, what resolution and accuracity Wiimote IR sensor have?
Title: Re: Handwriting with the IR Pen on the Whiteboard is awful
Post by: benpaddlejones on June 08, 2008, 05:47:13 PM
Pascal M

5 things you need to check/change (all have a serious impact on the quality of writing).

1.
Change to Boonjin's app http://www.boonjin.com/wp/2008/06/02/mouse-smoothing-for-wiimote-whiteboard (http://www.boonjin.com/wp/2008/06/02/mouse-smoothing-for-wiimote-whiteboard) if a windows user or Uwe's Java app http://www.uweschmidt.org/wiimote-whiteboard/ (http://www.uweschmidt.org/wiimote-whiteboard/) if a Mac user.

These pixel averaging options I find 5 pixel average gives me the best writing (I'm one ugly writer). But playing will give you the best result.

2.
Check your IR-Led is up to scratch. Read http://www.wiimoteproject.com/ir-pens/electronics-101-sharing-my-mistakes-updated-t834.0.html (http://www.wiimoteproject.com/ir-pens/electronics-101-sharing-my-mistakes-updated-t834.0.html) you may find your IR-Led is too narrow or not strong enough.

3.
Check your wiimote location you want (http://www.boonjin.com/files/wiimote/whiteboard/smoothing/whiteboard%20with%20smoothing.jpg) the "tracking utilization" to be greater than 50%. I have mine about 2.5m off to left (facing board.

Tracking utilisation mean show much of the tracking area is being used. If you are only using 25% then the resolution is going to be low.

4.
The best program to write with is Microsoft OneNote (part of Office) and Annotate Pro v2 http://www.annoatepro.com (http://www.annoatepro.com)

5.
PLAY
This is not end-user technology. You need to customise, play and learn. Please post your findings so we can all learn together.

Benpaddlejones
p.s. I suggest you check my video on how to enhance teaching and learning with the Wiimote Whiteboard
http://www.teachertube.com/view_video.php?viewkey=5bd5051bb953b99e01d7 (http://www.teachertube.com/view_video.php?viewkey=5bd5051bb953b99e01d7)