I'm a fan of versatility so when putting together a business card I decided it had to have blinkenlights, it had to have wireless features, it had to have USB, it had to do a lot .. and why not make it self-replicating too.
Success!
It uses an ATTiny84 with V-USB to do many of the tricks and has onboard WS2812's as well as an nRF24L01+ compatible RF module. And works as an USBasp too!
cool project!! How would you describe the “self replicating” nature of the card?