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| Created | October 18, 2012 |
| Last modified | October 18, 2012 |
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Long ago I had read that LED's will sense the same color they output. It might make for interesting bidirectional communication circuits. |
October 19, 2012 |
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you know, using that you could, in theory make a spectrometer. I would bet the LED would have different properties based on the light it was sensing. perhaps to just determine colors, or something a lot more advanced like breaking down wavelengths. I've also heard that LCD/LED televisions can 'see' objects in front of the screen, or at least the silohuettes. perhaps this is how it is done. Thanks for the tip! |
October 19, 2012 |
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