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Hackable Microcontroller-Powered Valentine's Card

Posted by kdawson on from the gotta-have-heart dept.

compumike writes "If you have a significant other to impress this Valentine's Day, consider putting your programming skills to use. This video tutorial shows how to build an LED Heart Valentine's card, powered by a microcontroller running C code, with a neat randomized 'twinkling' effect in an interrupt handler. Think about it: how many ladies can say that their Valentine's card runs at 14 MHz?"

3 of 133 comments (clear)

  1. Invalid XHTML by XanC · · Score: 3, Interesting

    That's the least page I can remember bearing a "Valid XHTML" logo at the bottom. Ugh.

  2. Something more simple by hack++slash · · Score: 3, Interesting

    If you want to make a special card which lights up, I saw this great little project close to christmas and so I made 9 cards, but instead of watch batteries that would die after a week or so I wired in resistors & USB plugs (strangely the only place I can find solderable USB plugs online/offline is from Maplins!), all the recipients loved them and most wondered how the blinking flip they were lit up.

    Edge lit holiday cards (the snowflake one looks much better with a black background & two blue LEDs, one at the top & other at the bottom)

    Next christmas I'm going to have to make something even better - anyone have any simple circuit designs on using an LED as a light sensor and then making some more LEDs react by blinking?

    --
    To do something right, you often have to roll up your sleeves and get busy.
  3. nerdkits by LS · · Score: 2, Interesting

    these guys seem to have a decent piece of the slashvertisement market recently...

    --
    There is a fine line between being a cultivated citizen and being someone else's crop. - A. J. Patrick Liszkie