Hacked Gadgets Forum

November 10, 2007

IR Detector Circuit

at 5:16 pm. Filed under Electronic Hacks

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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6 Responses to “IR Detector Circuit”

  1. EoPrime Says:

    Nice, thx for this simple circuit.

  2. » IR Detector Circuit - My Gadget Pro Says:

    […] Original post by Alan Parekh […]

  3. tmasman Says:

    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)

  4. crypto Says:

    how about this … use your cell phone camera to detect IR

  5. IR Detector Circuit - The Tech Blog Says:

    […] post by Alan Parekh Written by admin on November 10th, 2007 with no comments. Read more articles on […]

  6. abbasi Says:

    electronic circuit for amplifire infrared reciver

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