177 lines
7.4 KiB
Markdown
177 lines
7.4 KiB
Markdown
# MimiClaw: Pocket AI Assistant on a $5 Chip
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**[English](README.md) | [中文](README_CN.md)**
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<p align="center">
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<img src="assets/banner.png" alt="MimiClaw" width="480" />
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</p>
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**The world's first AI assistant(OpenClaw) on a $5 chip. No Linux. No Node.js. Just pure C**
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MimiClaw turns a tiny ESP32-S3 board into a personal AI assistant. Plug it into USB power, connect to WiFi, and talk to it through Telegram — it handles any task you throw at it and evolves over time with local memory — all on a chip the size of a thumb.
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## Meet MimiClaw
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- **Tiny** — No Linux, no Node.js, no bloat — just pure C
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- **Handy** — Message it from Telegram, it handles the rest
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- **Loyal** — Learns from memory, remembers across reboots
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- **Energetic** — USB power, 0.5 W, runs 24/7
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- **Lovable** — One ESP32-S3 board, $5, nothing else
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## How It Works
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```
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┌─────────────── Agent Loop ───────────────┐
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│ │
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┌───────────┐ ┌─────▼─────┐ ┌─────────┐ ┌─────────┐ │
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│ Channels │ │ Message │ │ Claude │ │ Tools │ │
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│ │────▶│ Queue │────▶│ (LLM) │────▶│ │──┘
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│ Telegram │ └───────────┘ └────┬─────┘ └────┬────┘
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│ WebSocket │◀──────────────────────────-│ │
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└───────────┘ Response │ │
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┌─────▼────────────────▼────┐
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│ Context │
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│ ┌──────────┐ ┌────────┐ │
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│ │ Memory │ │ Skills │ │
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│ │ SOUL.md │ │ OTA │ │
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│ │ USER.md │ │ CLI │ │
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│ │ MEMORY.md │ │ ... │ │
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│ └──────────┘ └────────┘ │
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└───────────────────────────┘
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ESP32-S3 Flash
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```
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You send a message on Telegram. The ESP32-S3 picks it up over WiFi, feeds it into an agent loop — Claude thinks, calls tools, reads memory — and sends the reply back. Everything runs on a single $5 chip with all your data stored locally on flash.
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## Quick Start
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### What You Need
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- An **ESP32-S3 dev board** with 16 MB flash and 8 MB PSRAM (e.g. Xiaozhi AI board, ~$10)
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- A **USB Type-C cable**
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- A **Telegram bot token** — talk to [@BotFather](https://t.me/BotFather) on Telegram to create one
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- An **Anthropic API key** — from [console.anthropic.com](https://console.anthropic.com)
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### Install
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```bash
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# You need ESP-IDF installed first:
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# https://docs.espressif.com/projects/esp-idf/en/stable/esp32s3/get-started/
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git clone https://github.com/memovai/mimiclaw.git
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cd mimiclaw
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idf.py set-target esp32s3
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```
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### Configure
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**Option A: Config file (recommended)** — fill in once, baked into firmware at build time:
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```bash
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cp main/mimi_secrets.h.example main/mimi_secrets.h
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```
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Edit `main/mimi_secrets.h`:
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```c
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#define MIMI_SECRET_WIFI_SSID "YourWiFiName"
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#define MIMI_SECRET_WIFI_PASS "YourWiFiPassword"
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#define MIMI_SECRET_TG_TOKEN "123456:ABC-DEF1234ghIkl-zyx57W2v1u123ew11"
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#define MIMI_SECRET_API_KEY "sk-ant-api03-xxxxx"
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#define MIMI_SECRET_SEARCH_KEY "" // optional: Brave Search API key
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#define MIMI_SECRET_PROXY_HOST "" // optional: e.g. "10.0.0.1"
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#define MIMI_SECRET_PROXY_PORT "" // optional: e.g. "7897"
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```
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Then build and flash:
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```bash
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idf.py build
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idf.py -p /dev/ttyACM0 flash monitor
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```
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Config file values have the **highest priority** — they override anything set via CLI.
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> **Note:** After editing `mimi_secrets.h`, run `touch main/mimi_config.h` before `idf.py build` to force recompilation.
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**Option B: Serial CLI** — configure at runtime after flashing:
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```bash
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idf.py build
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idf.py -p /dev/ttyACM0 flash monitor
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```
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```
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mimi> wifi_set YourWiFiName YourWiFiPassword
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mimi> set_tg_token 123456:ABC-DEF1234ghIkl-zyx57W2v1u123ew11
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mimi> set_api_key sk-ant-api03-xxxxx
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mimi> set_search_key BSA-xxxxx # optional: Brave Search API key for web_search
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mimi> restart
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```
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CLI values are stored in NVS (persistent flash) and used when no config file value is set.
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### CLI Commands
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```
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mimi> wifi_set <ssid> <pass> # set WiFi credentials
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mimi> wifi_status # am I connected?
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mimi> set_tg_token <token> # set Telegram bot token
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mimi> set_api_key <key> # set Anthropic API key
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mimi> set_model claude-opus-4-6 # use a different model
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mimi> set_search_key <key> # set Brave Search API key (for web_search tool)
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mimi> set_proxy 10.0.0.1 7897 # route through HTTP proxy
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mimi> clear_proxy # remove proxy, connect directly
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mimi> memory_read # see what the bot remembers
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mimi> heap_info # how much RAM is free?
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mimi> session_list # list all chat sessions
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mimi> session_clear 12345 # wipe a conversation
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mimi> restart # reboot
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```
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## Memory
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MimiClaw stores everything as plain text files you can read and edit:
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| File | What it is |
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|------|------------|
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| `SOUL.md` | The bot's personality — edit this to change how it behaves |
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| `USER.md` | Info about you — name, preferences, language |
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| `MEMORY.md` | Long-term memory — things the bot should always remember |
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| `2026-02-05.md` | Daily notes — what happened today |
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| `tg_12345.jsonl` | Chat history — your conversation with the bot |
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## Tools
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MimiClaw uses Anthropic's tool use protocol — Claude can call tools during a conversation and loop until the task is done (ReAct pattern).
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| Tool | Description |
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|------|-------------|
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| `web_search` | Search the web via Brave Search API for current information |
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To enable web search, set a [Brave Search API key](https://brave.com/search/api/) in your config file or via CLI (`set_search_key`).
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## Also Included
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- **WebSocket gateway** on port 18789 — connect from your LAN with any WebSocket client
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- **OTA updates** — flash new firmware over WiFi, no USB needed
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- **Dual-core** — network I/O and AI processing run on separate CPU cores
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- **HTTP proxy** — CONNECT tunnel support for restricted networks
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- **Tool use** — ReAct agent loop with Anthropic tool use protocol
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## For Developers
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Technical details live in the `docs/` folder:
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- **[docs/ARCHITECTURE.md](docs/ARCHITECTURE.md)** — system design, module map, task layout, memory budget, protocols, flash partitions
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- **[docs/TODO.md](docs/TODO.md)** — feature gap tracker and roadmap
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## License
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MIT
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## Acknowledgments
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Inspired by [OpenClaw](https://github.com/openclaw/openclaw) and [Nanobot](https://github.com/HKUDS/nanobot). MimiClaw reimplements the core AI agent architecture for embedded hardware — no Linux, no server, just a $5 chip.
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