Project ideas


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Thread: Project ideas

  1. #1
    Join Date
    Feb 2011
    Posts
    19

    Default Project ideas

    I just made a digital clock that uses a keypad to set time and i need a project idea for next year

  2. #2
    Join Date
    Nov 2005
    Location
    Bombay, India
    Posts
    863

    Default Re: Project ideas

    Graphic clock maybe ?

  3. #3
    Join Date
    Apr 2011
    Location
    Portland, Oregon
    Posts
    202

    Default Re: Project ideas

    Recently I have completed a single 5x7 scrolling sign that displays serial input. I made it small and modular so that it could be used during troubleshooting larger, more complex circuits (like debug, but more portable). It uses only a 5X5 matrix for letters/ numbers as I had hoped to use remaining rows for continuity testing, pin high/low lights, maybe even a button or two (as LEDS are light sensitive as well), but I failed because of multiplexing and common pins - next version will be hand wired LEDs so that my plan will work.

    I am now breadboarding (BB) a modular 5V supply that will use this principle to display circuit drain of BBed circuits... we will see, I am a NOOB at electronics.

    I think if (or when) I was smart enough I might make PWM output on a pin as well and have many troubleshooting tools that I made. I think it is only a master craftsman that makes his tools too.

    Maybe these ideas seem good to you too?

    If not... Parallax sells a reflective light sensor that sees 64 grays. Maybe you could build a music machine by making shade=tone and length=duration? strips of paper from a printer could play songs.

    How about an earthquake detector? Two pipes in the ground a few feet apart. One pipe holds a laser module the other a photo-resistor. Vibration should make the photo-resister vary output... It would not work well in the rain, but if the ground shakes on a sunny day you will know how much.

    I think I might make a thermometer that uses a fan to blow a ping-pong ball up a tube to show the right temperature--or two tubes to show hours and minutes of a clock. A relay to knock one up another tube once for each second could drive someone crazy.

    One day I might build a scale that weighs by pouring colored water into a tube on one side, then tells the weight by measuring the opacity (or resistance maybe) by how full the tube is.

    Ok, I should stop now because I have too many ideas and only a little skill. Still, maybe something might help you think...

  4. #4
    Join Date
    Aug 2010
    Location
    Maryland, USA
    Posts
    869

    Default Re: Project ideas

    I think I might make a thermometer that uses a fan to blow a ping-pong ball up a tube to show the right temperature--or two tubes to show hours and minutes of a clock. A relay to knock one up another tube once for each second could drive someone crazy.
    I REALLY like this one!!!
    -Bert

    The glass is not half full or half empty, Its twice as big as needed for the job!

    http://foamcasualty.com/ - Warbird R/C scratch building with foam!

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