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Carlos demonstrates how to build a simple IR detector. Looks like it could be done for a dollar or two.
“An IR signal is “seen” by a reverse biased IR diode which produced an electrical signal according to the light intensity. This signal is then amplified trough a transistor and used to power an ordinary LED. This means that the LED will light up when the IR diodes receives some IR light (from a TV remote for instance).”
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November 12th, 2007
Nice, thx for this simple circuit.
November 12th, 2007
[...] Original post by Alan Parekh [...]
November 12th, 2007
Finally, I way to find out if it’s a rogue TV or a TV-B-Gone being used to kill it…
I’ll get you pranksters yet!!! (haha)
November 12th, 2007
how about this … use your cell phone camera to detect IR
November 13th, 2007
[...] post by Alan Parekh Written by admin on November 10th, 2007 with no comments. Read more articles on [...]
December 4th, 2007
electronic circuit for amplifire infrared reciver
January 30th, 2009
wanted a schematic diagram of a cellphone detector which can detect mobile phones even at the standby mode
February 18th, 2009
how to detect spy infrared camera in room.please send simple detector circuit diagram
April 22nd, 2009
how to detect spy infrared camera in a room.please send simple circuit diagram