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291 Comments

  1. harshit wandhare

    pls tell me how can i connect ir sensor to a dc motor to make a obstuction detecting robot…

    Reply
  2. swati

    can anybody explain me all the designing part?

    Reply

  3. i have a confusion its given to use 47nF capacitor so is it equal to the 47 uf or is there diffrence and if yes pls tell me what is the diffrence and what will be its value in uf replay me pls … thanks

    Reply
    • Elecrom

      Hi,

      Yes, there is a big difference.

      47uf = 1000 x 47nf .

      Value of 47uf will be too large for this circuit and sensor will not respond quickly to the changes in reflectivity of the surface.

      Reply
  4. Frank

    I’m wondering whether a pair of the standard garage door opener infrared reverse sensors (that sell for around $23 a par) could be used in a stand alone manner. Perhaps DC could be fed to the pair of devices through a resistor and the sensors would work – changing the state of the LED in the receiver end. That voltage could be monitored to activate a circuit external to the sensor.

    Reply

  5. Thank you for every other informative site. Where else may I am getting that kind
    of information written in such an ideal way? I have a project that I’m simply now working on, and I’ve been on the glance out for such information.

    Reply
  6. Maria

    it is very informative for begginers

    Reply
  7. surya s

    can i use this circuit for my project automatic car parking system…..we are using IR sensor…

    Reply
  8. hiren

    also , Which type IR sensor (model no.) can be used to detect the obstacle and specification of the IR sensor (freq. , range , )

    Reply
  9. Gourav Singla

    thanks a lot my friend for this useful information……. explained very simply…. thank u…

    Reply

  10. This is a great tutorial and this is the reason that I included into an article about IR sensors how to tutorials. The article can be readed here http://www.intorobotics.com/use-infraredir-sensors-tutorials/

    Reply

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