Overview

There was a buzz created in the 1990s when the series of "Magic Eye" books were first published. These books displayed 3D images on plain paper without the need of any special head gear like red-green, Polaroid or LCD shutter glasses. These 3D images could be seen with the naked eye. The secret was the use of a horizontal repeating series of dots with a slight variation in the repeating series to give the illusion of depth in the 2D image. These images have been called a few names, including autostereograms, single image random dot stereograms (SIRDS), and single image stereograms (SIS). We will call them autostereograms in this learning guide.

With the Tiny Autostereogram Construction Kit (or TACK for short), you can create your own autostereograms using CircuitPython and an Adafruit Metro M4 Express and an Adafruit ePaper shield. It creates these 3D images from black and white or grayscale BMP images and display them on an Adafruit ePaper shield. You can even save them to a file and post them on social media. They are small enough be displayed on a smart phone and still retain the 3D effect. This project will require you to create and copy files onto the Metro M4 Express device. You will also need the help of a paint program that can resize images and save them to either 2 color or grayscale BMP files. 

Parts

Building this project requires no soldering and uses just two parts: the Adafruit Metro M4 Express and the Adafruit 2.7" Tri-Color eInk / ePaper Shield with SRAM.  Either the Metro M4 or Metro M4 Airlift Express can be used.

If you are interested in ePaper displays for other projects, check out the entire line of Adafruit's ePaper displays.

If you like this no solder project, you may also like the ePaper Maze Maker, the eInk / ePaper Weather Station, and the ePaper Calendar projects, which use the same components as this project: the ePaper shield and either the Metro M4 Express or Metro M4 Express Airlift light board. Since this project does not require a WiFi connection either Metro M4 Express board will work.

Parts

Adafruit 2.7" Tri-Color eInk / ePaper Shield with SRAM

PRODUCT ID: 4229
Easy e-paper finally comes to microcontrollers, with this breakout that's designed to make it a breeze to add a tri-color eInk display. Chances are you've seen one of those...
$39.95
IN STOCK

Adafruit Metro M4 feat. Microchip ATSAMD51

PRODUCT ID: 3382
Are you ready? Really ready? Cause here comes the fastest, most powerful Metro ever. The Adafruit Metro M4 featuring the Microchip ATSAMD51. This...
$27.50
IN STOCK

Adafruit Metro M4 Express AirLift (WiFi) - Lite

PRODUCT ID: 4000
Give your next project a lift with AirLift - our witty name for the ESP32 co-processor that graces this Metro M4. You already know about the Adafruit Metro...
$34.95
IN STOCK

USB cable - USB A to Micro-B

PRODUCT ID: 592
This here is your standard A to micro-B USB cable, for USB 1.1 or 2.0. Perfect for connecting a PC to your Metro, Feather, Raspberry Pi or other dev-board or...
$2.95
IN STOCK
This guide was first published on Aug 21, 2019. It was last updated on Aug 21, 2019. This page (Overview) was last updated on Nov 13, 2019.