Happy Valentines Day!
A few years ago I created a little valentines day project, shown in the video at the end of this post. It’s basically just a multi-vibrator circuit with two groups of LEDs, arranged as an inner and outer heart:
The full schematic is shown here, click on it for a full enlarged display:
Finally, if you want to download all the project information, you can get it here. This project is considered to be in the public domain.
I’ve thought about doing a new version actually, with a MCU for the LEDs to control brightness fade in/out etc.
Maybe next year!