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Author Topic: Wiimote laser tag  (Read 4181 times)
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« on: April 27, 2008, 10:09:01 PM »

I got this idea about a week ago. The only problem is i do not know any computer coding. The idea is to use the wiimote's IR camera to play laser tag (with IR guns of course). if anyone can help me please post here or e-mail me at rea002@yahoo.com
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« Reply #1 on: April 28, 2008, 02:08:28 AM »

i think your problem is distance

a laser reaches further than IR(or atleast there are very few Ir's that reaches that far)
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« Reply #2 on: April 28, 2008, 07:24:53 AM »

I don't think distance is the problem. There are instructions to build a lens array to increase the distance and special ir led (sfh 484 I think) that have enough power.
The problem that i see is that the wiimote has only 45 degree of sight. So you would need several wiimotes to cover the hole body.

PII
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« Reply #3 on: April 28, 2008, 09:49:28 AM »

What if you used your wiimote for gun?
You would have IR leds on your body, when you press a button, if there is a LED in the center of the IR camera, its a hit.
The problem is how to know who you killed?
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« Reply #4 on: April 28, 2008, 02:39:26 PM »

and the wiimotes has to be connected to a computer over bluetooth...~10meters or so...
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« Reply #5 on: April 28, 2008, 09:49:09 PM »

Ok, i made a triangle of the sight for the wiimote. The base of the triangle is about 32.6 cm for every 1 foot of its hight, which makes the area 489 cm2.I figured that the wiimote doesn't have an exact triangle so i took 2 cm off the tip of it. I have no idea if this will help or even if its correct.
and the wiimotes has to be connected to a computer over bluetooth...~10meters or so...
thats also a problem. i was going to use it for my church's youth group so we can play there. but on wikipedia (http://en.wikipedia.org/wiki/Bluetooth) it says that a class 1 bluetooth dongle has a range of 100 m.

Class    Maximum Permitted Power
mW(dBm)    Range          (approximate)
Class 1    100 mW (20 dBm) ~100 meters
Class 2    2.5 mW (4 dBm)  ~10 meters
Class 3    1 mW (0 dBm)    ~1 meter
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« Reply #6 on: April 29, 2008, 04:28:23 AM »

That is true - class 1 is 100 meters - but i don't know the specs on the wiimote... is it 10 or 100 meters?

//UndCon
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« Reply #7 on: April 29, 2008, 04:27:16 PM »

the max operating distance is 9.144 m. but i think if i position the computer in the middle if the church it might be able to reach throughout the building. also i figured about 5 ft. or more will do for a good shooting range. the only thing left to do is get a program. are there any low cost (or free) and easy to use programs that are out there, or is this something i would have to take a collage class to program it (i'm still in high school)?
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« Reply #8 on: April 30, 2008, 12:07:55 AM »

You also need to count in the factor of walls and how they can dampen a signal and make it weaker. Assuming that most lasertag facilities have a plethora of walls.

Most wireless controllers will say something along the lines of "30ft range in clear room, 10 foot through walls"  or something of the sort.
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« Reply #9 on: April 30, 2008, 02:12:34 AM »

Yes they do state clear view range...

Last time i played lasergame it was in an old storage (~10meters to the ceiling) but none of the walls were higher than 2.20meters so there was a clear view above all obstales - so this can be easily overcomed if you mount the antenna (BT-dongle in this case) above the objects - attach it to the ceiling. (if its high enough that is...)
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« Reply #10 on: April 30, 2008, 08:34:36 AM »

Im pretty sure you could mount multiple access point for bluetooth?
It works for wireless networks, it should work with bluetooth too i think?

But still how do we know who we killed and count the score? Each "gun" would have a different mac adress, but each armor would only have LEDs, so no way to know who is shot.

But still it would be really funny! :p
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« Reply #11 on: April 30, 2008, 09:50:37 AM »

If you can add pulses to the IR led to send different identification codes i think you can identify the targets

a link

http://www.google.com/search?client=opera&rls=en&q=bluetooth+roaming&sourceid=opera&ie=utf-8&oe=utf-8
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« Reply #12 on: April 30, 2008, 03:20:29 PM »

Im pretty sure you could mount multiple access point for bluetooth?
It works for wireless networks, it should work with bluetooth too i think?

But still how do we know who we killed and count the score? Each "gun" would have a different mac adress, but each armor would only have LEDs, so no way to know who is shot.

But still it would be really funny! :p
the multiple access points could work (one team could have a computer at their base or a captain could have a PDA that has  the team linked). and also the wiimote is going to be the object that gets shot, not an LED vest (there will be LED guns). the factor of being shot from behind isnt a problem. and also, we could just keep track of how many people we killed (there will probably be around 10-15 people playing) so scoring for yourself isnt a problem. the games are going to be a team fight rather than an every-man-for-himself kind of game.
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« Reply #13 on: May 03, 2008, 06:39:23 AM »

There is already a glovepie script that does this.You need to have some IR emitters stuck on you where you want the targets on each player.It works but the same rules will apply to the range as usual of course.When you are shot your wiimote is disabled to return fire for a defined amount of time.I found the script at www.wiili.org
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« Reply #14 on: May 09, 2008, 03:28:57 PM »

The problem that i see with LED guns is that a IR led isnt unidirectional, there is no way to know if the killed was really pointing the gun at you (unlike lasers).
Also, if the WiiMote is the object that is being shot at, you would need mutliple wiimote on each person. Its getting alot of connexions on a bleutooth receiver, even more if there are 10-15 players.
Also you could only count how many time you get killed not how many time you kill since there is no way to know if your IR gun hit someone or no.
I really think it would be more easy to use the wiimote for Gun than for the target.

I have aleady programmed some programs for a wiimote, when i finish all my exams i will maybe do a simple laser tag program.
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