How to build a simple remote control

Discussion in 'Homework Help' started by C'ya, Aug 28, 2011.

  1. C'ya

    Thread Starter New Member

    Aug 28, 2011
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    Hi everyone

    I need help with the project that I have to do at school, we had choices to build any electrical engineering innovation and I chose to build a remote control. I wanted to be different from others because some are building the DC motors, generators etc. If there is something much easier or more exciting than building a remote control I'll be very happy if anyone can suggest it. I you guys to help me on the instructions, the material and everythong I will need to build a remote control. Please guys I really need your help and I have to submit on the 24th of October 2011.
     
  2. bertus

    Administrator

    Apr 5, 2008
    15,648
    2,346
    Hello,

    I found this post in the "completed project collection" section.
    Your post was invisible over there.
    I moved it to the "home work help" section, as you state it is a school project.

    Show us your progress, so we can give comments and hints.

    Bertus
     
  3. C'ya

    Thread Starter New Member

    Aug 28, 2011
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    The reason I posted here I wanted help because I've never designed before, so for now I haven't done anything and do not now where to start. I want to make a small correction on my post that I'm at University not School. If anyone can help me!!!
     
  4. praondevou

    AAC Fanatic!

    Jul 9, 2011
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    488
    The easiest RF remote control to build without knowing anything about RF is with these:http://www.linxtechnologies.com/products/rf-modules/lc-series-low-cost-transmitter-modules/

    I posted it somewhere else already, these are all-in-one radio chips for remote controls, or low bitrate data transmission.
    You'll need an SMD adapter for this small package, a few bypass capacitors, a transistor ,a relay, a pushbutton, batteries and ready is your RF remote control.
     
  5. C'ya

    Thread Starter New Member

    Aug 28, 2011
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    How is it going to work? Is it going to need me provide the original remote control en what can its receiver be, a TV?
     
  6. praondevou

    AAC Fanatic!

    Jul 9, 2011
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    Ok, I should have asked before: What do you want the remote control to control?:D

    The example from my other post is a simple RF transmitter and receiver chip. You press a button on the transmitter side and you get a signal on the receiver side. You can do whatever you want with this signal. This is a pretty easy project.

    If you want to control a TV set, then that's something different, these remote controls work with infrared...
     
    Last edited: Aug 31, 2011
  7. nsaspook

    AAC Fanatic!

    Aug 27, 2009
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    A modern wireless remote control is a pretty complex device. If you have never designed anything before I would suggest a simpler project.

    PS:
    The original 'Zenith Space Commander CLICKER remote' used ultrasonic sound bars to transmit button presses. The actual remote was fairly simple but the receiver was not.

    You can find the some (600 or lower numbers) on ebay or other sites.

    http://www.youtube.com/watch?v=WE9eCGjMPE0
     
  8. C'ya

    Thread Starter New Member

    Aug 28, 2011
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    Can you give me just the brief instructions on how to put it together, because in the web page you gave me, there are only the RF modules, which do not give me the full setup.
     
  9. praondevou

    AAC Fanatic!

    Jul 9, 2011
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    Ok, actually you will need two ICs on the transmitter side and two on the receiver side.

    Transmitter:
    Encoder - http://www.linxtechnologies.com/resources/data-guides/lical-xxx-ls001.pdf

    Transmitter IC - http://www.linxtechnologies.com/resources/data-guides/txm-xxx-lc.pdf
    OR
    http://www.linxtechnologies.com/resources/data-guides/txm-xxx-lr.pdf

    Receiver:
    Decoder - http://www.linxtechnologies.com/resources/data-guides/lical-xxx-ls001.pdf (same as above)

    Receiver IC - http://www.linxtechnologies.com/resources/data-guides/rxm-xxx-lr.pdf

    On the encoder: connect the 4 data lines via pull-down resistors to GND. Connect a switch to one or more of the datalines to VCC. Connect baudrate selector pin to 0.
    Connect the data out pin to the data in pin on the transmitter IC.

    On the Decoder/receiver: connect the data out pin of the receiver to the data in pin of the decoder.

    Put bypass capacitors from VCC to GND.

    Please have a look at the datasheets I posted (figure 4 on the ls001 gives you a idea on how to connect the encoder/decoder ICs). The setup is really easy. If you still need a diagram tell me and I can draw it for you...
     
  10. C'ya

    Thread Starter New Member

    Aug 28, 2011
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    wow!! that was owesome. Those datasheets were very helpful thank you very much. Now I do have an Idea of how my design is going to be and how it is going to function. I'll ask you again if I come across a problem.
     
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