https://oshpark.com/shared_projects/gF1VQ7jz

Gerbers for stencil are in the download section)

See BOM above or interactive BOM in the Downloads

COPXIE is 100% compatible with PIXIE. So it runs the PIXIE firmware. It can be found here: https://github.com/connornishijima/Pixie/tree/master/examples/PIXIE_FIRMWARE

Follow instructions in the Firmware:

- Add Attiny 45 support to your Ardruino IDE

- Add soft i2c

- Get a suitable Programmer for you Attiny (Ardruino Nano with ArdruinoISP for example)

Don't forget to set the fuses of the Attiny like written in the comments of the Firmware. In V110 this is "ATTINY45 @ 16MHz - millis()/micros() Enabled, BOD Disabled". This can be done in the Ardruino IDE_ Tools->burn Bootloader.

There a tons of Tutorials how to work with Attinys and Ardruino. So please try to help yourself first if it is not working directly.

You should now able to control Copxie like a PIXIE. You can even mix them in a chain. See also https://github.com/connornishijima/Pixie for more Information about the great PIXIE host library to control them.