Infrared emitting diodes can also act as infrared detectors
http://youtu.be/1dDeCCD2828
I discovered this when I was identifying infrared emitters from infrared detectors.
I discovered this when I was identifying infrared emitters from infrared detectors.
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My first choice in quality Japanese electrolytics is Nippon Chemi-Con, which has been in business since 1931... the quality of electronics is dependent on the quality of the electrolytics. -
Re: Infrared emitting diodes can also act as infrared detectors
I have one soldered to a BNC connector that I plug into my DSO for testing remotes or for decoding IR codes.
Putting a 47k and a small cap across it improves the wave shape.Last edited by rievax_60; 01-01-2014, 09:16 PM. -
Re: Infrared emitting diodes can also act as infrared detectors
Works for visible light LED's as well ( except white as these have a phosphor coat so they are actually blue or UV leds so only respond to blue or UV light poorly) and you can see how the colour needs to be a shorter wavelength, else you get no output no matter how bright the illumination.Comment
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