Connect with us

Making a beacon

Discussion in 'General Electronics Discussion' started by Rehab Doc, Sep 7, 2015.

Scroll to continue with content
  1. Rehab Doc

    Rehab Doc

    Sep 7, 2015
    My daughter has a science project -- she needs to build a beacon that remains dormant until activated by a signal that can then broadcast a unique frequency signal that can range between 100 to 300 feet; the beacon needs to be as small as possible, the size of a quarter or even smaller if possible. Would this be considered a medium range signal? What type of technology would we look at? Garage door signal? Bluetooth? Other? Please help. Thanks.
  2. davenn

    davenn Moderator

    Sep 5, 2009
    what sort of signal is going to trigger it ?
    your size limit is unlikely to be met for a home project ... that would be a challenge even for a hi tech manufacturing company

  3. Colin Mitchell

    Colin Mitchell

    Aug 31, 2014
    At the same time the school can request the student make a new Sinclair computer the size of a matchbox and costing less than $30.00
  4. Rehab Doc

    Rehab Doc

    Sep 7, 2015
    Cell signal to trigger; I don't mind contacting a high tech company, any suggestions?
  5. Rehab Doc

    Rehab Doc

    Sep 7, 2015
    Is the chip used for garage opener small? Would that technology work?
  6. KMoffett


    Jan 21, 2009
    "...I don't mind contacting a high tech company, ..." ????

    Isn't a student science project supposed to be within the capability of the "student"? Seems like she should be the one asking questions here? I can almost always tell when a student project has been overtaken partially or completely to an adult. Especially when you start asking the student questions about the details of "their" project. :(

    davenn likes this.
  7. davenn

    davenn Moderator

    Sep 5, 2009
    yup, exactly

    it will cost you $1000's to get a hi-tech company to do it for you and as Ken said totally defeats the purpose of the exercise

    I suggest you look for something that is within the capabilities of your daughters knowledge and skills
  8. AnalogKid


    Jun 10, 2015
    Do you have a more clear description of the requirements. It sounds like this can be done with some $3 modules from China - except for that whole cell phone requirement.

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.
Electronics Point Logo
Continue to site
Quote of the day