Need help designing my circuit

Discussion in 'The Projects Forum' started by mattmers, Sep 4, 2014.

  1. mattmers

    Thread Starter New Member

    Oct 17, 2012
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    I'm working on a project and need a bit of help, I can solder but have never designed my own things.

    Basically needs to do this:
    first device (device A) needs a push button(on/off) , light blinks as a result then a wireless signal needs to be given off. Then a separate device (device B) needs to receive the signal, and turn a light on and have audio play once. If the device B is out of range then the light turns off. Kinda complicated, well atleast to me. Would I be able to build this from parts from radio shack? I don't care if the wireless signal is analog or digital.

    Oh and if there are any unemployed electrical engineers with a good bit of experience shoot me a message :)
     
  2. jpanhalt

    AAC Fanatic!

    Jan 18, 2008
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    How will device B know a signal has been sent by device A, if it is out of range of device A? In other words, must device A send a continuous signal? If B is in the off state, and it is out of range, what will it do? Does B communicate with A to say it received the signal (i.e., is in range)?

    Can you use infrared (IR) or must you use radio?

    John
     
  3. MikeML

    AAC Fanatic!

    Oct 2, 2009
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  4. mattmers

    Thread Starter New Member

    Oct 17, 2012
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    Device A should continuously send out signal after activation. Device B should always be searching for signal and should not do anything until it detects something.
    I'd prefer radio because it has a bigger range.
     
  5. MikeML

    AAC Fanatic!

    Oct 2, 2009
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    You could use these types of modules,

    I recently bought several. I am using the transmitter as is, but I added circuitry to do what I needed to the receiver module.

    As I explained in my link, I would have the transmitter make transmissions on a fixed, periodic schedule. The "out of range" indication should be based on "receiver missed more than n expected transmissions", where n is a small number, like 3-5.
     
  6. mattmers

    Thread Starter New Member

    Oct 17, 2012
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    0
    I was kinda wanting to start from scratch as much as possible. Would I be able to add circuitry to the remote if need be? I don't care about size and for power I would be ok with battery or car power outlet. This is more of a proof of concept/prototype. Thanks for all your help so far guys :)
     
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