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Combine bluetooth transmitter in a school project

  1. Jun 7, 2012 #1
    im in 11th grade and im in a electorinc trend at school, we have to make a project for school and i want to combine bluetooth technology in it.
    i looked i looked Through the internet for guilding- how it is built, are there any protocols, how to use / transmit/recive - everything.
    so far i have found only few datasheets.
    (the project has to be submitted next year)
    anyone here knows a site that teaches this subject?

    thanks a lot.
  2. jcsd
  3. Jun 7, 2012 #2


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    Staff: Mentor

    Welcome to the PF.

    Here is an Arduino microcontroller (uC) board with Bluetooth capability:


    You could probably base your project on that module, and come up with some good IO that you can control via the BlueTooth wireless path.

    And the Wikipedia intro tutorial to BlueTooth looks pretty good:


  4. Jun 8, 2012 #3
    thanks but the circuit in arduino site is a completed one with a mini processor- i am looking for a guide that teaches how to build a circuit like this- how to transfer data through a bluetooth transmiter, how the radio waves works- do you know a site that teaches it or it is to comlicated to learn online?(if there is a site that teaches it is not matter if it is complicated)
  5. Jun 8, 2012 #4


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    Staff: Mentor

    The wikipedia page is a good place to start learning more. And if you follow the links out of that article, you can learn quite a bit more detail.

    BlueTooth modules are available separately, so you don't need to buy it already combined with a uC. You probably are not going to be building a BlueTooth module yourself from scratch, though. At the very least, there are licensing requirements that you need to go through with the BlueTooth folks if you want to build something to their standard from scratch.
  6. Jun 8, 2012 #5
    ahh ok
    i got confused then
    i thought the bluetooth is the method itself

    is it possible to transmit data through short lengh radio wave with a home-made transmitter?
  7. Jun 8, 2012 #6


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    Staff: Mentor

    Yes, but see my post #12 in this other thread:


    You have to be fairly skilled and have adequate test equipment in order to avoid causing EMI with your hand-built transmitters...
  8. Jun 10, 2012 #7
    is it possible to generate a stable frequent without understanding the billion laws arround it such as Coulomb and Lenz's law (and about 20 more)?
    if so what laws and principles are necessary to know and what arent(the explanations of wikipedia are too complicated)?
  9. Jun 13, 2012 #8
  10. Jun 13, 2012 #9
    If you want to design a transmitter/receiver, you don't need to know the physics, but you must know how the electronic components work together.
    (That makes sense in my head, but if it isn't clear, I'll try again.)
  11. Jun 14, 2012 #10
    you mean like ready components that can transmit a signal?
  12. Jun 14, 2012 #11
    Who are you responding to?

    (It's easier to keep things straight within a message thread if you use the "quote" feature: Click the QUOTE button on the message you wish to reply to.)
  13. Jun 15, 2012 #12
    ah ok
    i sent that message before to you
  14. Jun 15, 2012 #13
    I was specifically referring to discrete electronics -- resistors, capacitors, transistors, inductors, etc. If you buy a ready-made transmitter module, then you really aren't "designing" a transmitter.

    From a practical standpoint, using something like a Zigbee module to add Bluetooth to a project is the way to go.
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