IR sensor module is not working ?

Discussion in 'The Projects Forum' started by abhimanyu143, Oct 14, 2015.

  1. abhimanyu143

    Thread Starter Member

    Aug 25, 2014
    211
    1
    Hello
    my IR sensor module is not working.

    I am testing with LED
    IR Pin configuration
    Pin 1 is the output connected with LED (RED LED on breadboard )
    Pin 2 is ground
    Pin 3 is VCC, connect to 5V

    please look images, both case LED does not turn Off
    how to fix the issue?
     
    Last edited: Oct 14, 2015
  2. ericgibbs

    AAC Fanatic!

    Jan 29, 2010
    2,503
    380
    hi 143,
    What type is your sensor module.?
    Is it designed for continuous or pulsed reception.?

    E
     
  3. pwdixon

    Member

    Oct 11, 2012
    488
    56
    First decide if it's the led or the sensor not working.

    Use your phone camera to look at the led and if it glows on the camera image then at least you would know the led is powered. It wont tell you that the modulation is 'wrong' but it will detect a missing led output
     
  4. abhimanyu143

    Thread Starter Member

    Aug 25, 2014
    211
    1
    Hello ericgibbs
    i don't know I just bought module from shop. I wanted to make some projects using IR module
    look at module Image
    IC LM358

    Pwdixon :

    I saw white LED with mobile camera. it does not glow on camera Image
     
  5. pwdixon

    Member

    Oct 11, 2012
    488
    56
    Does "I saw white LED with mobile camera. it does not glow on camera Image" mean the TX led does not light up when viewed straight on through your phone camera? If yes then the led is not being activated for some reason and that's the place to start looking for the problem.
     
  6. business_kid

    New Member

    Feb 5, 2013
    22
    1
    I take it your diode is an IR emitter, not a receiver. Is that correct?

    The way to test the diode is:will it influence an IR receiver of a similar frequency,and vice versa. Whether it lights is not definitive. If it won't go off, you are applying constant power.
    Remember some models are extremely directional
     
  7. abhimanyu143

    Thread Starter Member

    Aug 25, 2014
    211
    1
    I have fixed first problem. I saw on camera LED is emitting blue light I have connected white LED on backside of PCB. again I tested module with breadboard LED but still module is not working?
     
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