Throughout centuries — millennia even — of wearing clothing, we’ve come to accept that whatever design is on a shirt (shawl, robe, cloak, suit of armor, etc.) pretty much there permanently. However, as Steven Hawes shows in this project write-up, times have changed — and you no longer have to accept static images on your shirt!
What he came up with is a ticker device uses a Raspberry Pi to pull information via Wi-Fi — a phone hotspot can be used for a truly mobile display — which then pushes text to an Arduino Nano via USB serial. The Arduino takes this info and translates it into light commands over three 8×8 RGB panels for a scrolling information display. Panels are hidden inside the wearer’s shirt, making things look vaguely normal when not lit up, and giving things a nice diffused effect.
The Pi/Arduino controls are affixed to a separate module, which is strapped to the wearer’s back as shown. A sewed-on compartment, backpack, or fanny pack could also be used as the situation dictates. It’s a flexible concept that could be adapted to a variety of display situations, and code for the build is available on GitHub, along with an optional bracket for the LEDs if you’d like to use that mounting method.