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I need project ideas

Discussion in 'General Electronics Discussion' started by Anon_LG, Aug 11, 2014.

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  1. Anon_LG

    Anon_LG

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    Jun 24, 2014
    I am stuck on what to build next, preferably I would like to make a project the involves digital electronics. I know how to input sensors into digital circuits and understand logic, flip flop memory, dividers, adders etc. I have access to just about all the digital components I need using Maplin and RS components, I do not have microcontrollers. If it involves some electronics being outside this is fine as I have a radio transmitter and receiver. Does anyone have ideas for a project under £30?
     
  2. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

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    How about a break-beam detector that uses a modulated beam and triggers based on a missing pulse detector.

    See what sort of range you can get between the transmitter and the receiver without false triggering.

    This neatly combines analog and digital.

    Use your knowledge to design something from scratch rather than looking on the net for ideas.

    For extra bonus, do it with a laser diode and see if you can set it up over a distance of 30 metres or more (in daylight).
     
  3. Anon_LG

    Anon_LG

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    Jun 24, 2014
    Thanks for the idea steve

    Is there anything you could suggest I could use this to control/activate?
     
  4. BobK

    BobK

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    Jan 5, 2010
    An alarm or announcer come to mind.

    Bob
     
  5. KMoffett

    KMoffett

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    Double the beams, and send the outputs to logic and an up-down counter to conut the number of things going in and out through a portal.

    Ken
     
  6. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

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    Or measure the interval and use it to measure speed.
     
  7. Gryd3

    Gryd3

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    Jun 25, 2014
    You can set it up in the front yard to clock people driving past ;)
     
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