A Pocket-Sized Digital Fish Tank

A maker known as StratoBuilds created Pocket Tank, a handheld device that simulates a virtual fish tank using the Waveshare ESP32-S3-Touch-AMOLED-1.8, an ESP32-S3 microcontroller paired with a 1.8-inch screen. Fish swimming animations run as regular code at 25-30 fps, while a custom large language model, condensed to run directly on the ESP32, drives the fish's decision-making and goals based on observed tank conditions. Like a Tamagotchi, the device requires the user to perform maintenance tasks such as feeding fish and cleaning the tank. Project files are available on GitHub alongside a blog post and YouTube video walkthrough.

Source: https://hackaday.com/2026/09/26/a-pocket-sized-digital-fish-tank. 8 Sync News only summarizes and links out; content copyright belongs to the authors and original sources.