How to make an IR pen for a Wiimote Interactive Whiteboard

This video is a detailed description of how to make an IR pen. I talk about each of the components and how they fit together

Category:

Education

Tags:

• wiimote
• interactive
• whiteboard
• IR
• pen

[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 it ir my IR led thats the problem?

[ccardew]

I use an AAA and the pen that I made in this video still works ok over a year later...Not sure what diode you are using

[ccardew]

You can get an infrared LED from places like Maplin in the UK, Radioshack in the US, Akihabara in Tokyo. If you use any serach engine and put in IR LED it should give you some sources. Remember to check the specification of the diode carefully as I explain above. In my video I use an IR LED with an operating voltage of 1.6volts which means I can get away without using a resistor. Hope this helps

[yashatono]

thanks for a nice video explaining things a little deeper.

:)

[ccardew]

Great, glad you found it helpful

Chris

[TimothyTheDude]

ah so basicly what he means is battery + switch + IR led = a circuit

[harrycollard]

if i wanted mine to last for more than two days i would add a series resistor so that the average current through the resistor does not exceeded its exceeded current rating. normally about 30mA or 50 mA. for battery purposes i normally set it at 20mA. and you dont need it any more powerful than that because it will still work.

[viclope]

@davidjeffers28227 It matters very much if the batteries are alkaline (around 1.5V) or rechargeable (around 1.2V). Usually these LEDs light with one battery. Did you use rechargeables in parallel?

[AxelTiger]

I understand that a diode only allows electrons to travel in one direction but is there any benefit to having one in such a small circuit?

[goodmorninggeek]

I can't hear a THING you're saying.

[nanotek2711]

I think 1.5V won't be enough to light the LED.

[ahmd1431]

ia331411.us.archive.org/3/item­s/TvQuran.com__1/TvQuran.com__­020.mp3

[davidjeffers28227]

@TheEntertainer93 No, I never did. I plan on going back to that project before long

[TheEntertainer93]

@davidjeffers28227 i have the same problem... i dont know what to do...

do you solwed it?

[stinkyhamster111]

unless you expect a newborn baby to solder, why are you explaining it like: this is a battery holder, it is important to put the battery in the right way

[tdulude]

Thank you for the instructional video. It was easy to follow for a novice such as myself.