Connect with us

What is wrong with my wireless circuit?

Discussion in 'Radio and Wireless' started by asheshrai189, Jul 18, 2019.

  1. asheshrai189

    asheshrai189

    2
    0
    Jul 18, 2019
    I am trying to make an Rf controlled circuit. For this, I am using 433mhz RF module, HT12-E, and HT12-D encoder-decoder IC. I have succeeded in making wired communication between transmitter and receiver circuit by connecting pin 17 of HT12-E and pin 14 of HT12-d IC.
    But, I am not able to make a wireless connection between it. The circuit diagrams are given below which I have followed.
    Please help me out, I have also replaced the RF module once.
     

    Attached Files:

  2. Nanren888

    Nanren888

    111
    22
    Nov 8, 2015
    Do you have specs, part numbers for the radio modules?
    It would seem that they are not working, or you are not talking to them in a way they understand.
     
  3. asheshrai189

    asheshrai189

    2
    0
    Jul 18, 2019

    Can you please explain?
     
  4. davenn

    davenn Moderator

    13,288
    1,756
    Sep 5, 2009

    he listed that in his post :)
     
  5. hevans1944

    hevans1944 Hop - AC8NS

    4,225
    1,995
    Jun 21, 2012
    He listed the encoder and decoder modules but did not specify the 433 MHz RF transmitter and RF receiver modules. The receiver module is shown with two DATA outputs, and both of these are connected to pin 14 of the HT12D decoder. Connecting outputs together generally does not work. It might be helpful to know why the receiver has two data outputs, and how they are supposed to be used.
     
    davenn likes this.
  6. Nanren888

    Nanren888

    111
    22
    Nov 8, 2015
    I mean do the radio modules have part numbers.
    We would have to guess how they work to guess why they may not be working for you.
    If you give us the part numbers, or specification of the radio modules, someone might look them up and have a closer look at what might be your problem.
    For example, sometimes the voltage levels out of one module don't match the ones into another module.
    As hevans1944 says, one of the modules has two outputs which surprised me too. Did you have an application sheet or something that suggested connecting them together?
     
    davenn likes this.
  7. WHONOES

    WHONOES

    710
    146
    May 20, 2017
    Have you had a look at what's coming out of the receiver or the transmitter for that matter?
     
  8. hevans1944

    hevans1944 Hop - AC8NS

    4,225
    1,995
    Jun 21, 2012
    Of course not. This was yet another "drive by" poster looking for a quick answer rather than a dialog.
     
Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Similar Threads
There are no similar threads yet.
Loading...
Electronics Point Logo
Continue to site
Quote of the day

-