Explain Everything. Acapela.tv. Tagxedo - Word Cloud with Styles. Prezi - The Zooming Presentation Editor. Glogster - join the visual communication network. Wiimote Whiteboard. What if you could turn each of your existing labs with ceiling mounted projectors into interactive smartboards? And what if you could do it for around $55? Parts needed: A Nintendo Wii controller ($39.99) A USB to Bluetooth adapter ($12.99) Momentary pushbutton switch (~$1.00) Infrared LED (~$1.00) Used dry erase marker (practically free) The Nintendo Wii controller is a bluetooth enabled device that has an infrared sensitive camera in it's tip. You can pair it with a bluetooth capable computer, or use a USB to bluetooth adapter if your computer does not have bluetooth built in.
The LED, switch, and dry erase marker will be used to create a pen input device that emmits infrared light when the switch is depressed. Using the two, the Wii controller will be able to detect the location of the pen tip and transmit that data to a computer. Unfortunatly, I didn't take any photos during the main construction of the pen, but it's not a difficult device to understand.
See it in action: