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Author Topic: IR LED - Does it have to emit a light?  (Read 1103 times)
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gmac
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« on: February 21, 2008, 06:17:35 PM »
Hi All, I have been having difficulty finding a seller here in Toronto who sells IR LED's.  I built one pen but it only has 50 m/a.  It's not very bright at all.  I found another guy who sold me some IR LED's, BUT they don't glow.  He told me it will still work for what I need it to..so my question....does the IR LED HAVE to emit light?   
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Hopka
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« Reply #1 on: February 21, 2008, 06:22:49 PM »
Yes, it has to emit light. But it's OK if it only emits infrared light. And you cannot see infrared light with your bare eyes. You can however use a digital camera or a webcam to check if the LEDs are on since such cameras capture infrared light.
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gmac
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« Reply #2 on: February 21, 2008, 06:25:56 PM »
Okay....so the IR LED's I bought today, 940n/ma I think, should work with the Wii remote, even though I cannot see the IR?
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TheBlackCat
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« Reply #3 on: February 21, 2008, 07:05:47 PM »
Exactly.  In fact if you can see it then it most almost certainly won't work.
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