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Old 10-24-2010, 11:17 PM #1
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Smile Need Help! on my 20mW green laser module.

Hi there,

I recently bought an 20mW green laser module.
My problem is how do I power this thing I know it uses batteries but which one?
the specifications are:
20mW
532nm
250mA

And one last thing ho do I connect the power source.
my first time trying this out.

thanks.


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Old 10-24-2010, 11:31 PM #2
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Default Re: Need Help! on my 20mW green laser module.

Can you tell us more about the module?
Where did you buy it?
Does it include a driver?
If so, what is the voltage requirement?
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Old 10-25-2010, 08:33 AM #3
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Default Re: Need Help! on my 20mW green laser module.

Quote:
Originally Posted by RA_pierce View Post
Can you tell us more about the module?
Where did you buy it?
Does it include a driver?
If so, what is the voltage requirement?
Okay I bought it from this site DealExtreme: $8.81 20mW 532nm Green Laser Module (3V 11.9mm)

there is not much info on the laser module itself
the voltage requirement is just 3V some said if I go over that I will damage the module.
i hope this is usefull.
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Old 10-25-2010, 11:57 AM #4
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Default Re: Need Help! on my 20mW green laser module.

Welcome to LPF.

Just use two AA 1.5v (serial) or two AAA 1.5v.
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Old 10-26-2010, 11:19 AM #5
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Default Re: Need Help! on my 20mW green laser module.

Quote:
Originally Posted by magonegro View Post
Welcome to LPF.

Just use two AA 1.5v (serial) or two AAA 1.5v.
Thanks,

how do I do that? with soldering? cause i really don't know how to
thanks.
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Old 10-26-2010, 12:14 PM #6
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Default Re: Need Help! on my 20mW green laser module.

The review on DX say that the wires are blue and red, with the blue being the +.

It might be true for yours as well, you could get a battery holder for two batteries?
Or just use some tape?

You could also start reading up on how to build a laser, there is plenty of material on this site. Just be careful, it can be an expensive hobby.
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Old 10-26-2010, 04:32 PM #7
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Default Re: Need Help! on my 20mW green laser module.

Use this: AA/14500 size battery holder w/ 6 leads, cover and switch [BH3] - $2.39 : Modwerx Shop
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Old 10-27-2010, 01:41 PM #8
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Default Re: Need Help! on my 20mW green laser module.

that's really usefull information Thanks!
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Old 04-10-2011, 03:30 AM #9
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Default Re: Need Help! on my 20mW green laser module.

Is there a way to operate it, like say in a spirograph, with it wired up to a switch on the outside?


Like if you didn't want to use that little button on it, if you were mounting it within a spirograph.
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Old 04-10-2011, 03:35 AM #10
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Default Re: Need Help! on my 20mW green laser module.

Yes, but you will have to solder a bit of wire across the connections on the button.

(or maybe improvise something with a bit of eraser and tape to hold the button down. )
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Old 04-10-2011, 03:55 AM #11
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Default Re: Need Help! on my 20mW green laser module.

Is there a way to pop off the button part and solder under it?

Or is that what you meant?
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Old 04-10-2011, 04:46 AM #12
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Default Re: Need Help! on my 20mW green laser module.

It is possible, but it would be much easier to short it where it connects to the print.
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