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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Nice, thx for this simple circuit.
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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)
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how about this … use your cell phone camera to detect IR
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electronic circuit for amplifire infrared reciver
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wanted a schematic diagram of a cellphone detector which can detect mobile phones even at the standby mode
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how to detect spy infrared camera in room.please send simple detector circuit diagram
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how to detect spy infrared camera in a room.please send simple circuit diagram