Tiny Star (Colorful Silkscreen)

My project for the Celebrate Childhood OSHWLAB Event

It's a PCB in the shape of a star using the colorful silkscreen technology, made in EasyEDA Pro.

It uses an ATtiny microcontroller and a shift register to drive LEDs all around the board and optionally a few LEDs can also be mounted on the back side for a glowing effect.

Note that I'm not providing code for the microcontroller since it's a DIY project, everyone can write their own code to light the LEDs in the desidered pattern.

The shift register is connected as follows:

SER - PB2

OE (Output Enable) - PB3

RCLK - PB1

SRCLK - PB0

The logic of the LEDs is inverted, HIGH means OFF, LOW means ON