Trading cards made with e-ink displays
I made a thing! In 2014, I was holding a stack of iPhones and thought to myself: "Hey, if I had each phone display a playing card, I could click a button and they'd shuffle themselves" I pared that idea all the way down to this: trading cards made of e-ink displays. Right now, each card costs me about $20 each, but with only a bit more scale, I think I can get that down to $10. In doing this project, I learned how to design electronics and circuit boards. I learned Rust and wrote my first driver, I upped my CAD skills, 3D printed, and did my first resin casting. I generated the images on the…
Trading cards made with e-ink displays launched on November 30, 2022 with 1,149 votes, #4 of 3,471 launches that month and more than 99% of that year's launches. The site was still online in September 2026, 3 years on.
In plain words
Trading cards made with e-ink displays are digital cards that show different images and can be shuffled electronically. Each card contains a small e-ink screen and costs around $20 to produce, with potential to reach $10 at scale. The product is for collectors and enthusiasts interested in interactive physical trading cards. The maker designed custom electronics and circuit boards, learned Rust programming, and used AI-generated images for the card designs.
written from the facts on this page · September 2026
From the sources
Introducing Wyldcard, a new paradigm for tabletop gaming, trading cards which can magically change as you play.
Based on an idea I had in 2014, built in my spare time over the past two years, I’ve finally completed my first physical prototypes. Wyldcards are small plastic cards with e-ink screens (like a Kindle). When placed onto a plinth, the image on the card can be changed by a hidden computer. The cards also contain a memory chip, so they can store stats, moves, and keep changes and status effects from one game to the next. Plug your plinth into your friend’s and play against them. I think these cards have the potential to unlock a new paradigm of tabletop gaming. They are rooted in the physical world, but can implement complex game mechanics run by a computer. This has been my most ambitious…from wyldcard.io
In the maker’s words, at launch
I made a thing! In 2014, I was holding a stack of iPhones and thought to myself: "Hey, if I had each phone display a playing card, I could click a button and they'd shuffle themselves" I pared that idea all the way down to this: trading cards made of e-ink displays. Right now, each card costs me about $20 each, but…
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Source: Show HN post ↗ · launch text quoted in part
