January 30, 2009 at 1:57 am Leave a comment

Hey how many of your have a wii? How many of you have a wii controller? Well im guessing those two numbers are the same. Well Johnny Chung Lee has figured out a way to use your wii-mote to create an interactive white board with multiple track points for CHEAP!!!!!                           

  (the following is fromhttp://www.cs.cmu.edu/~johnny/projects/wii/)

Read the rest of the entry to find out how







Since the Wiimote can track sources of infrared (IR) light, you can track pens that have an IR led in the tip. By pointing a wiimote at a projection screen or LCD display, you can create very low-cost interactive whiteboards or tablet displays. Since the Wiimote can track upto 4 points, up to 4 pens can be used. It also works great with rear-projected displays.

The calibration and mouse cursor emulation software is available for you to download and try yourself. Note: The mouse emulation code isn’t perfect. If any of you are programmers and can get it working with Alias Sketchbook, drop me a line.
1. Connect your wiimote to your PC via Bluetooth. There are a number of tutorials online on how to do this, possibly even for you specific software/hardware configuration. The Wiimote works with many (but not all) Bluetooth drivers. You can report/read about compatibility issues at WiimoteProject.com
2. Download the Wiimote Whiteboard software at the bottom. Please read the “READ ME.txt” file first! Make sure your wiimote is connected via Bluetooth, and then run the “.exe” in the main folder. NOTE: Good placement of the wiimote is key to good tracking. View the README for more info.

Multitouch: The multitouch demos are custom C# DirectX programs. You may download the sample program to the right, but this is provided for developers without support or documentation. The code is built on top of this Wiimote library. Unfortunately, multi-touch capable applications are currently extremely rare. Hopefully, that will change as more developers explore its potential.

Building pens: Here is a simple schematic of the light pen. The LEDs that I use are Vishay TSAL6400s running at 100mA, but lots of other LEDs will work too. You also might be able to jump start your experimentation by retro-fitting a mini keychain light with an IR LED. I’m currently looking into manufacturing and selling IR pens, but this may take several months.

Mac/Linux Versions: Due to personal time contraints, I probably won’t be able to make a port myself. But fairly mature versions are available online. However, I haven’t tried them myself. I’ve also created a Source Forge Project – Wiimote Whiteboard, but it does not seem to be getting much love.

A visit to this project’s FAQ and Advanced Discussion post may be very englightening. You may also find the official discussion forums for my wiimote projects helpful: WiimoteProject.com

Download Links


Version 1 w/source   http://www.cs.cmu.edu/~johnny/projects/wii/WiimoteWhiteboard.zip

v2 w/ source http://www.cs.cmu.edu/~johnny/projects/wii/WiimoteWhiteboardv02.zip

v3 w/source http://www.cs.cmu.edu/~johnny/projects/wii/WiimoteWhiteboardv03.zip



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