This is a modified version of the Flthy Holoprojectors v1.8 sketch by Ryan Sondgeroth (aka FlthyMcNsty). The original code can be found here:

http://www.2geekswebdesign.com/FlthyHPs/Sketches

The modification is to add support for the Adafruit OLED Breakout Board 16-bit Color 0.96" w/microSD.

https://vimeo.com/274855320

I've included 3 movie files:

Leia

Original File

Plans

Original File

R2

Original File

Instructions

You can find assembly instructions over on Astromech: https://astromech.net/forums/showthread.php?35515-How-to-Holo-projector-with-OLED-display

Parts List

This is a list of the parts that I used not the only way to accomplish the same thing

1. BobC Holoprojector

2. R2-D2 HP Slip Ring Mount

3. Adafruit OLED Breakout Board 16-bit Color 0.96" w/microSD

4. Adafruit NeoPixel Ring 12x

   The RGBW versions look to be compatible in size

5. 12 wire slip ring

6. Window Film One Way mirror (non-adhesive)

   You can put the rest on your windows :-)

7. Any kind of clear acrylic adhesive. I use Weld-On but I'm sure other types work just as well

8. 3mm sheet of clear acrylic for laser cutting

9. Arduino Mega or Mega Mini

   If you decide to use Mega Mini make sure you get the 5V version.

   Note that the Mega Mini pinout for the TTL is not standard so you'll need to run jumpers. I ended up using this TTL USB

10. Crimp ends and crimpers for the slip ring.

11. Heat shrink tubing and some wire wrap for the finishing touch