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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. pfftt... by djupedal · · Score: 5, Insightful

    >"...how many ladies can say that their Valentine's card runs at 14 MHz?"

    How many want to?

  2. Make her a dinner reservation instead by piltdownman84 · · Score: 5, Insightful

    Only a really 'special' girl is going to be impressed by this. The only thing a girl wants you to make for Valentines day is a dinner reservation.

  3. Re:Come now by daveime · · Score: 4, Insightful

    Damn, you mentioning 555's takes me back ... in 1981 when I was just 13 years old, I got a little project published in Everyday Electronics, on just such a premise ... an oscillator made from two gates of a 4001 feeding into a 1 of 6 counter (4022 ?) and 6 LEDs cycling in sequence. I'd abandoned the 555 in favour of the NOR gates as it was bloody unstable and used to do horrible things to the power supply.

    I got paid 12 pounds for getting that published, which was like a kings ransom for a 13 year old.

    Microcontroller pfft ... can you say overkill ?