Modular ESP32 dev board that lets AI coding agents build and test real hardware.
ESP-Mosaico homepage
1 / 2Overview
What is ESP-Mosaico?
A modular development board built for agents.
ESP-Mosaico by Espressif is a modular development board built for coding agents, taking AI agents beyond software and into the physical world.
Chat Coding lets you describe what you want in natural language while ESP-Claw, the built-in on-device AI agent framework, generates and runs the application. Vibe Coding pairs a desktop AI coding agent (Codex, Claude Code, OpenCode) over USB for a full code, deploy, test, observe and iterate loop. Plug-in camera, audio, sensor and control modules attach via dual 20-pin expansion interfaces, and multiple Mosaico devices combine magnetically for multi-device interaction. The ESP32-S31 core offers dual-core RISC-V up to 320 MHz, Wi-Fi 6, Bluetooth 5.4, Thread 1.4, Zigbee 3.0, a 480x480 AMOLED touch display and 128 MB flash, with fully open-source factory firmware on GitHub.
The Vision Combo Kit (Core Unit v1.2 + Camera Module + Interaction Module) costs $59.00 as a one-time hardware purchase, currently in pre-order with shipping in about 15 days. A clip-on battery module is available separately.
Platforms and languages
ESP-Mosaico Availability
Platforms
Languages
Capabilities
ESP-Mosaico Key Features
Chat Coding
Describe what you want in natural language and ESP-Claw, the built-in on-device AI agent framework, generates and runs the application.
Vibe Coding
Pair a desktop AI coding agent such as Codex, Claude Code or OpenCode over USB for a full code-deploy-test-observe-iterate loop.
Modular hardware
Plug-in camera, audio, sensor and control modules attach via dual 20-pin expansion interfaces; multiple units combine magnetically.
ESP32-S31 core
Dual-core RISC-V up to 320 MHz with Wi-Fi 6, Bluetooth 5.4, Thread, Zigbee, 512 KB SRAM, a 480x480 AMOLED touch display and 128 MB flash.
Open agent-native software stack
Fully open-source factory firmware (ESP-Claw) on GitHub, a community app ecosystem, wireless app installs and a web control panel.
Best for
Who uses ESP-Mosaico?
Developers, makers and AI enthusiasts who want AI coding agents to build physical devices
Use Chat Coding or Vibe Coding to create, deploy, test and iterate on real hardware.
Plans and access
ESP-Mosaico Pricing
Paid
Vision Combo Kit $59 (pre-order); battery module optional.
Common questions
ESP-Mosaico FAQs
How long does the battery last?
The built-in 65 mAh battery lasts about 15 minutes with the screen on, 10 with Wi-Fi, 5 with the camera. A ~1000 mAh clip-on battery module is available.
Can I change the LLM?
Yes. The factory firmware is fully open source and works with ChatGPT, Claude, DeepSeek and self-hosted model services; the on-device agent talks to the model service you configure.
Which slots do the modules fit?
All modules except the camera fit either slot; the camera module only fits the left slot. Modules support hot insertion but not hot removal.
What is the enclosure made of?
The current enclosure is resin 3D-printed, with open STL files for custom prints; an injection-molded version is planned.
What are the order terms?
Pre-orders ship in about 15 days. Full refund or address changes are possible before shipping; after shipping, orders cannot be cancelled, and unopened returns are accepted within 14 days.
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