Society of Robots - Robot Forum
Electronics => Electronics => Topic started by: gamefreak on January 05, 2008, 05:00:33 PM
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In the tutorial near the end you said: "Often people cannot remember whether the black or the clear LED is the emitter or detector. This is the mnemonic I use to remember, dark colors absorb more light than clear, so the dark LED is the detector."
But i recently acquired a few pairs from Radioshack, on the back of the package it says the blue tinted one is the emitter and the white one is the detector, is Radioshack just a backwards electroics place or is this more common then I think?
Also, with no lights my detector is over 999 k Ohms
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Also, with no lights my detector is over 999 k Ohms
Your point being?
That's normal, and when you shine IR light on it it'll be a few ohms.
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But i recently acquired a few pairs from Radioshack, on the back of the package it says the blue tinted one is the emitter and the white one is the detector, is Radioshack just a backwards electroics place or is this more common then I think?
Take a cell phone camera or webcam ( which can see IR light) and see which side is the emitter!
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But i recently acquired a few pairs from Radioshack, on the back of the package it says the blue tinted one is the emitter and the white one is the detector, is Radioshack just a backwards electroics place or is this more common then I think?
hmmmm never heard of a blue tented IR receiver . . .
let us know your results from airman00's suggestion
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according to my cell, radioshack tells the truth, and admin is wrong :o
the blue one creates a pretty light on my cells camera
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yeap, even the all mighty admin makes mistakes :P
but in actuality, robotics tech changes very fast, so what I say today may not be true next year . . . a few of my old tutorials are definitely outdated . . .
anyway, I updated that tutorial with your findings
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yea you cant blame the admin ;D blame technolodgy....right?