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Builld a touch activated Valentine’s LED card

Posted on Tuesday, February 14th, 2012 in DIY by DP

Happy Valentine’s from Dangerous Prototypes. This touch activated Valentine’s card is one of Ian’s early projects at DIY Life.

It’s designed to be home-etched on a single-sided PCB. A PIC16F microcontroller fades the LEDs like a heart beat. It’s activated when someone touches the conductive pad, which allows current through a PNP transistor and wakes the PIC from sleep.

This entry was posted on Tuesday, February 14th, 2012 at 7:00 pm and is filed under DIY. You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a response. Pinging is currently not allowed.

2 Responses to “Builld a touch activated Valentine’s LED card”

  1. tayken says:

    Ahhhh, I remember this. :) Tried this circuit 2 years ago for Valentine’s Day but messed up a couple traces during etching. She still liked it. :)

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  • DP.: fixed, thanks
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