17 Comments

  1. July 5, 2012 at 8:29 pm

    de silva

    Hi sir

    within how far this circuit can operate.and can i replace that speaker with relay.

    Reply
    1. July 5, 2012 at 10:27 pm

      Sagar

      It should operate from two meters. If you are trying to control a relay with remote control, I recommend you to go to this page: http://www.buildcircuit.com/object-counter/
      And on this page, you can see, a circuit layout with mini breadboards, right below “a. Connect collector pin of infrared remote tester to positive terminal of electrolytic capacitor of RC module.”, make that circuit first, then I will tell you how to proceed ahead in another mail. First try that circuit. When you press a remote, it switch ON the red LED for some duration.
      Write me back after you finish it. I will probably write you tomorrow again.

      Reply
  2. October 8, 2012 at 1:36 pm

    Abinash

    Sir thank u for ur circuit posted here, but I need to transmit audio from an amplifier using infrared , so how to modify ur circuit??
    Plz reply soon….
    I am doing it as my final year mini project.
    So thank u in advance …..

    Reply
  3. February 17, 2013 at 10:00 am

    adil khan safi

    i want to make this project. but i did not want to use modely genrator. i want to use mobile phone to transmit audio signal.please help me

    Reply
  4. February 17, 2013 at 10:02 am

    adil khan safi

    i want to make this project.. but i did not want to use modely genrator. i want to use mobile phone with audio jack. so help me

    Reply
  5. February 17, 2013 at 4:54 pm

    adil khan safi

    sir i want to make this project but i have to use cell phone as a music transmitter instead of music modely.. please help

    Reply
  6. February 18, 2013 at 4:51 pm

    Richard Zino

    This is superb! Thank you for putting this down for us to learn from, I really appreciate your efforts. Please I’m a final year student from college, I need a circuit diagram on ” infrared Voice transmitter and receiver ” and the working principles. That is my project topic. Please sir I will be very grateful if can do this for me.
    Thanks

    Richard

    Reply
  7. March 5, 2013 at 7:09 am

    Devashish

    hi sir,
    Can I use ldr in place of phototransistor in Infrared Based Music Transmitter And Receiver Project.
    Please help me.
    because I have no photodiode.

    Reply
  8. March 7, 2013 at 8:57 am

    Avra Mitra

    sir, i want to transmit audio from my ipod.i have no need of um 66.how i will modify the circuit?
    plz,plz help me.it’s urgent.
    thanks

    Reply
  9. March 29, 2013 at 9:56 am

    JESSE DANMALLAM KWADA

    PLS
    SIR, I AM USING INFRARED BASE MUSIC TRANSMITTER AND RECEIVER AS MY
    PROJECT BUT HOW CAN I DO THE PROCEDURE FOR CIRCUIT CONSTRUCTION
    (TRANSMITTER AND RECEIVER CIRCUIT), HOW CAN I DO THE CALCULATIONS AND
    EXPLAIN WHY THE VARIOUS COMPONENT ARE USED. THAT IS, WHAT ARE THE
    FUNCTIONS OF EACH OF THE ELEMENT.

    Reply
  10. April 1, 2013 at 3:11 pm

    John C Sunil

    Sir how can i transmit my voice with this device please reply.

    Reply
    1. April 1, 2013 at 6:07 pm

      Sagar Sapkota

      Search on google

      Reply
      1. September 3, 2013 at 11:32 am

        aneshkumar.k

        add a microphone and a resistor in it the circuit like ordinnary fm transistor

        Reply
  11. April 1, 2013 at 3:14 pm

    John C Sunil

    And also can i use a ldr instead of a photo-diode ?

    Reply
    1. April 1, 2013 at 6:06 pm

      Sagar Sapkota

      NO

      Reply
  12. July 21, 2013 at 12:03 am

    neutron-x

    How do i do it without a melody transmitter

    Reply
  13. January 24, 2015 at 3:28 am

    ringgo

    i want do this project. but i want use bluetooh not infrared. can u help me .

    Reply

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