Builld a touch activated Valentine’s LED card

in DIY by DP | 2 comments

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.

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Comments

  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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