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Creating motion-sensitive headset (Read 240 times)

Feb 17^th, 2008 at 6:33am

machineman9 Offline
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On youtube there are videos for how to turn Wiimotes (with the help of an old mouse and USB cables) into a working mouse for the computer.

Anyway, I am thinking about trying to do something similar to what TrackIR offers using this technique.

I am thinking of mounting a Wiimote (as I have one) ontop of my monitor and linking it to a spare mouse.... Then I would fasten 2 or so LEDs to a pair of spare sunglasses and wire these to USB so that they are powered.

The reason why I think this would work is in the Wiimote mouse videos there is often lit candles or something which the mote uses for reference points, and using LEDs would still create IR with which the mote could use to reference off. The only difference is that instead of the mote moving, the IR references are moving... which should be just the same as if the mote had moved. Change a few settings in the game and you have the mouse (Wiimote) as the camera control..

What do you think of this? Do you reckon it is a feasable project? I have all the required items, but from the looks of it, only X and Y would be affected... no Z or rotation movement.

Cheers

« Last Edit: Mar 1^st, 2008 at 5:46pm by machineman9 »

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Reply #1 - Feb 17^th, 2008 at 12:49pm

machineman9 Offline
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The use of the mote failed... but a second thought has come in

Using the same headset mock up I think I can achieve something like in the video here:

http://uk.youtube.com/watch?v=Jd3-eiid-Uw

Basically using a webcam (with a program called Free Track) and a headset like in that video... the same result is achieved for a very small price.

NICE!

Shall try to buy some IR LEDs later this week... and I will need a decent webcam.

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Reply #2 - Feb 17^th, 2008 at 2:40pm

Wii Offline
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That is awesome! I want one...

Can you say "next gen gaming"?

&&http://352photography.webs.com/

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Reply #3 - Feb 17^th, 2008 at 3:34pm

machineman9 Offline
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I would say so...

It is just a really neat thing to have.

In my first test I blew up an IR LED (which was centimetres from my eye) in a matter of seconds.

I guess I should do more reading and less experimenting... I havent been more scared in years. It glowed orange and then a puff of smoke as it burn out. Removed the USB connection just in time- I could have faced a short soon after.

Perhaps I will buy the TrackIR headset, but use a webcam and FreeTrack to save money... I really dont like the idea of electronics going like this so close my face...

What sort of a resistor would be required to lower the voltage from 5V down to 4.5V so that it can be shared in series to 3 LEDs? Im not really sure when it comes to resistors what I need... edit: a 5.1Ohms is enough, apparently. 5V going through 3 LEDs, each at 1.5V and each with 100mA

THESE

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Reply #4 - Feb 23^rd, 2008 at 12:20pm

newberiffic Offline
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Wii wrote on Feb 17^th, 2008 at 2:40pm:

That is awesome! I want one...

Can you say "next gen gaming"?

Hell ya, that is badass!!!

P4 duo 3.4, 4 gb ram dual geforce 5200's running a projector, 3 monitors, a simpit with Ch Throttle Quad, pedals, yoke, a hacked up and extended force feedback, a real Garmin 396 using gpsout, freetrack head tracking, a F-16 seat, and yes the seat cushion can be used as a floatation device......really!&&&&

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Reply #5 - Feb 23^rd, 2008 at 12:49pm

machineman9 Offline
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And anyway...

I am about to order my webcam to make this FreeTrack project work.

Might have results soon, just need the LEDs, resistor and webcam...

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Reply #6 - Feb 26^th, 2008 at 5:45pm

machineman9 Offline
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Well I have ordered the webcam, should be arriving late this week or early on the next.

At the weekend I will go componant-shopping.

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Reply #7 - Mar 1^st, 2008 at 5:47pm

machineman9 Offline
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Well I have the webcam required, and it has mucked up the webcam image with the IR filter removed (bah, I'm hardly photogenic anyway)

Anywho, where can I buy IR LEDs? Maplin has a very limited range, and I dont know where else I can get them...

Anyone have UK sites? Cheers

Well, maplin does have a 3mm one... but would this be alright do you think? £1.19 SFH487-3 GaAs IR LED

« Last Edit: Mar 1^st, 2008 at 6:49pm by machineman9 »

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Reply #8 - Mar 1^st, 2008 at 6:38pm

BuggsK100RS Offline
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Might sound daft but could you not get hold of some old TV remote and scavenge the IR LED's???

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Reply #9 - Mar 1^st, 2008 at 6:50pm

machineman9 Offline
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BuggsK100RS wrote on Mar 1^st, 2008 at 6:38pm:

Might sound daft but could you not get hold of some old TV remote and scavenge the IR LED's???

All the ones I have are in use, and I wouldnt be able to tell if they all have the same requirements, thus some might get damaged from the power put through them.

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Reply #10 - Mar 2^nd, 2008 at 4:23pm

J. Offline
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wow awesome, watched the youtube vid and its pretty awesome!

im interested now about creating my own Head Tracking. could you please link me to the site where you are learning all this

cheers

J

Striking software Beta Team leader | Follow Striking Software on twitter Or Follow me on Twitter

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Reply #11 - Mar 2^nd, 2008 at 4:36pm

machineman9 Offline
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*links given*

To anyone else interested,

www.free-track.net
http://uk.youtube.com/watch?v=MNstobEAado
http://www.maplin.co.uk/Module.aspx?ModuleNo=2269&criteria=infrared%20LED&doy=2m...

official site for software/other guides
guide i am following
place for LEDs, links respectively.

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Reply #12 - Mar 3^rd, 2008 at 11:40am

J. Offline
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found a better place for the LED's actually have the recomended one

http://uk.farnell.com/jsp/search/browse.jsp;jsessionid=B13Z1WHABX2JPQFIAFAZKBQ?N...

also, got my web cam modified, and working, i did a short test in FS9 earlier using a TV remote as the emitter and it worked

cant wait to finish building the headset

Striking software Beta Team leader | Follow Striking Software on twitter Or Follow me on Twitter

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Reply #13 - Mar 4^th, 2008 at 11:20am

machineman9 Offline
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Well I have the 3 LEDs that I ordered (3mm ones, but I guess they should be okay)

Just need a resistor- I asked my tech teacher today and she forwarded me over to another teacher who mainly does A level stuff (we dont really use 11Ohm resistors) but I will have to wait until tomorow to see if I can get one.

What other shops might have one? I have a B&Q nearby but im not sure if they will be likely to have one. Any thoughts?

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Reply #14 - Mar 5^th, 2008 at 4:28pm

machineman9 Offline
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Okay. I have a few assurances from my teacher that she will find me a suitable resistor for my project.

If this doesnt turn out to be the case, could I strap another LED (a regular red one) into the circuit so that it does not need to be resisted?

3x1.5V LEDs+
1x.15 or so V LED

Would this keep me out of danger of over powering it?

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