Build an Infrared Pen for the Wiimote Interactive Whiteboard

[MrFrenchZombie]

but how do you connect it to the battary? what do you connect the springs o?

[AUGIExBEAST]

is this patented?

[20bogart]

hi what is the use of wiimote please explain it for me thanksss

[tisapache]

Do a Google search for Johnny Chung Lee to see what motivated me to build the pen.

[tisapache]

Do a Google search for Johnny Chung Lee to see what motivated me to build the pen. The comments section here would not permit me to provide you with the URL.

[TimDutchess]

want more information on infraredpens

infraredpens

.

com

[MaVaM]

My pen works, using a 940 nm IR Led. My problem is that the wii mote doesn't respond to the led....

Is it possible that the wii-mote is insensitive to this wavelength?

[tisapache]

The LED appears to be correct. Be sure to test the operation of the LED with a digital camera. If you see LED turn on/off, here are the issues I have seen others experience.

1. Blue tooth sync problems with the Wii remote.

(Not all bluetooth devices work with the software. Try both java and c# versions and a lot of patience.)

[tisapache]

2. Placement of the Wii remote in relationship to the IR source. (The infrared light source must be visible to the lens of the Wii remote. Like testing the LED with your digital camera, if you cannot see the LED through the view finder, you cannot see if the LED is on. My experience shows that aiming the Wii remote from above and slightly away from the side I stand works best. If your Wii remote is too far or too close to the projection area it does not respond very well.)

[tisapache]

My pen only uses a single AA battery and it works fine with the Wiimote. I did find that the Java version was easier to install and use compared to the C# version. Location of the Wiimote is important, I find that above and right of center works best.

[davidjeffers28227]

how do you power it? I use 2 AA but it doesnt give off enough IR light to reflect back to the wii mote. do you think my IR led is the problem?

[tisapache]

The pen as I have built it only uses a single AA battery. If you apply more than 1.5 v to the pen as it is shown in this video, you will need to place a resistor in the circuit. See the Johnny Lee web site for specifics about resistors.

[Shakespeare1612]

I would double check the polarity of your LED. The LED is a diode. It will only work if it is connected correctly, positive to positive and negative to the negative side of the battery. In fact if too much voltage is hooked up in the wrong directly it might blow, and ruin your LED.