🪴Carnegie Mellon's OATs Put Tamagotchi-Style AI Avatars on $20 E Ink Objects
Your coffee mug could have an AI personality for $20
TL;DR
Carnegie Mellon PhD student Kim built OATs, micro AI avatars on tiny E Ink screens that pair with household objects for about $20. Sprites come from Google's Nano Banana model. It's a proof of concept, but it's a sharp look at how we talk about AI behavior.
A Carnegie Mellon PhD student just put a Tamagotchi-style AI personality on your stuff. OATs, short for Object Agent Twins, are micro-agent avatars on small E Ink displays that attach to everyday objects. The project was shown at the ACM UIST symposium in Detroit in early November, and it earned two Honorable Mention awards. Why should you care? Because this is a clean case study in designing for attachment, and the interaction model is blunt on purpose. Each OAT can express a handful of emotions on its E Ink screen, nothing more. Its web app generates Positive and Negative behaviors from an object's name and description, so you can prototype a personality for a plant, a badge, or a water bottle in minutes. If you build hardware or agent UX, that constraint-first approach is worth stealing. The numbers are modest. The main module runs about $20, the battery lasts roughly three to four days, and pairing it with the sound level sensor drops that to a single day. Charging happens over USB-C into a lithium-ion polymer cell. People use OATs three ways: asking "Am I being used?", warning people near an object, and tracking their own habits. The demo was popular enough that Kim turned it into a contest for the most interesting object pairings.
Key Points
The main OAT module costs around $20, which makes it cheap enough to stick on a mug, a plant pot, or a conference badge without a second thought.
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