Since the Wiimote can track sources of infrared (IR) light, it can track pens that have an IR led in the tip. By pointing a wiimote at a projection screen or LCD display, 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.
Software
The calibration and mouse cursor emulation software is available for download and try yourself.
1. Connect wiimote to PC via Bluetooth. There are a number of tutorials online on how to do this, possibly even specific software/hardware configuration. The Wiimote works with many (but not all) Bluetooth drivers. Can report/read about compatibility issues at WiimoteProject.com.
2. Download the Wiimote Whiteboard software. Read the "READ ME.txt" file, make sure 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. 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 : The LEDs that use is normal type of LEDs while other LEDs with name/brand or without name/brand also work too. Might be able to jump start the experimentation by retro-fitting a mini keychain light with an IR LED.
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