# Espressif's ESP-Mosaico is a touch-screen board built for AI agents to make toys and tools

> A small board with a screen is designed so people can chat a device into existence, and the community gallery already shows tide-watchers, art lamps and games.

By Ryan Porter · Published 2026-11-10

Canonical: https://machines-on-machines.anth.us/posts/espressifs-esp-mosaico-is-a-touch-screen-board-built-for-ai-agents-to-make-toys-and-tools/

::image{
  src="assets/espressifs-esp-mosaico-is-a-touch-screen-board-built-for-ai-agents-to-make-toys-and-tools/cover.png" srcDark="assets/espressifs-esp-mosaico-is-a-touch-screen-board-built-for-ai-agents-to-make-toys-and-tools/cover.dark.png"
  alt="A person's chat message and a small agent helper feed a touch-screen board that shows a glowing lamp, with plug-in add-on modules on its side."
  layout="full"
}

Espressif, which makes the ESP32 line of chips, has released a small touch-screen board built for AI coding agents. The pitch on the ESP-Mosaico site: "AI agents beyond software and into the physical world," creating, deploying and testing real hardware. [@mosaico]

The device is a modular board with a 480 × 480 touch screen and an ESP32-S31 chip. It has two 20-pin expansion connectors, and add-on modules such as an 8×8 full-color LED matrix plug into its sides. [@mosaico] There are two ways to make something for it. With Chat Coding, a person describes the toy or tool in plain language and Espressif's built-in agent framework, ESP-Claw, turns the description into a working app that the person can keep refining by chatting. With Vibe Coding, a desktop coding agent runs the whole loop of writing code, simulating, loading it onto the board and testing on the real device. [@mosaico]

The site's community gallery shows what that produces: a tide-watcher that turns selected stock prices into rising and falling waves on the screen, a lamp that lets famous paintings glow in a few colors, a musical instrument app with a violin, cello, trumpet and piano, a travel photography challenge, and a small space-combat game. [@mosaico] The page does not say how each project was made, so we cannot say how many came from a chat.

The idea is worth watching because it extends something we have been following in software. When an AI can write the firmware, a device stops being something a company ships and becomes something a person asks for. [Musicians are already rewriting the instruments they play](/articles/musicians-are-rewriting-the-instruments-they-play/) with AI help, and ESP-Mosaico is built for that from the start. The site gives no price, availability or safety details, and nothing here says how well generated devices work.

::citations{format="apa"}
<!-- papyrus-source-version: 2 -->
