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#15293 - 03/30/07 06:22 AM Re: Build an infrared (IR) blaster [Re: sash18]
Guy Lavoie Administrator Offline
Beyond All Hope
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Registered: 12/21/02
Posts: 6548
Loc: Montreal, QC, Canada
By "in parallel" I just mean that you put two LEDs instead of just one, with both cathodes connected together, as well as both anodes.
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#15294 - 04/19/07 09:07 AM Re: Build an infrared (IR) blaster [Re: sash18]
joel7269 Offline
newbie


Registered: 03/01/06
Posts: 1
Sorry for the ignorance.
I'm trying to figure out how these parts work>
274-374 (Phono Plug)
and
274-251(jack)
I ordered these two parts from RadioShack and they don't appear to be correct. Maybe the part numbers have changed? The plug doesn't come apart and I see no way to use the Jack with this part.

Seems like I need this part instead
274-286

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#15295 - 04/19/07 10:18 AM Re: Build an infrared (IR) blaster [Re: joel7269]
Guy Lavoie Administrator Offline
Beyond All Hope
*****

Registered: 12/21/02
Posts: 6548
Loc: Montreal, QC, Canada
Yes, 274-286 is what you need to plug into an Ocelot's IR output jack.
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"If you don't know what you're doing, do it neatly..."

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#22856 - 01/04/12 02:47 PM Re: Build an infrared (IR) blaster [Re: Guy Lavoie]
dahlheim Offline
junior


Registered: 12/31/08
Posts: 43
how would i modify this circuit for, for example, being driven by an Arduino? these devices supply perhaps 40mA max current and do not contain the current-limiting resistor apparently present in the Ocelot.
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#22860 - 01/04/12 05:11 PM Re: Build an infrared (IR) blaster [Re: dahlheim]
Guy Lavoie Administrator Offline
Beyond All Hope
*****

Registered: 12/21/02
Posts: 6548
Loc: Montreal, QC, Canada
I would need to know what kind of output circuit that device has. Are the output connections labeled in any way that might give a hint, such as cathode, anode? Or + , - ?
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"If you don't know what you're doing, do it neatly..."

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#22862 - 01/05/12 02:37 AM Re: Build an infrared (IR) blaster [Re: Guy Lavoie]
dahlheim Offline
junior


Registered: 12/31/08
Posts: 43
Guy, as always, you are a gem.

I put a small circuit together as such (under "IR-Driver transistors") and it works. Thanks for "turning me on" to the idea, and for being responsive and helpful once again.

http://www.ladyada.net/make/tvbgone/design.html

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