MeshAI

LLM-powered assistant for Meshtastic mesh networks.

Features

• LLM Chat: Responds to @mentions and DMs with AI-generated responses
• Multi-backend: Supports OpenAI, Anthropic Claude, Google Gemini, and local LLMs via LiteLLM
• Bang Commands: !help, !ping, !reset, !status, !weather
• Conversation History: Per-user context maintained in SQLite
• Smart Chunking: Automatically splits long responses for mesh transmission
• Rate Limiting: Configurable delays to avoid flooding the mesh
• Rich Configurator: Interactive TUI for easy setup

Installation

# Clone the repository
git clone https://github.com/zvx-echo6/meshai.git
cd meshai

# Install with pip
pip install -e .

# Or install dependencies manually
pip install -r requirements.txt

Quick Start

# Run the configurator
meshai --config

# Or copy and edit the example config
cp config.example.yaml config.yaml
# Edit config.yaml with your settings

# Run the bot
meshai

Configuration

Run meshai --config to launch the interactive configurator, or edit config.yaml directly.

Key Settings

bot:
  name: "ai"                    # @mention trigger
  respond_to_mentions: true
  respond_to_dms: true

connection:
  type: "serial"               # serial or tcp
  serial_port: "/dev/ttyUSB0"

llm:
  backend: "openai"            # openai, anthropic, google
  api_key: "your-api-key"
  model: "gpt-4o-mini"

Using Local LLMs

MeshAI works with any OpenAI-compatible API, including:

• LiteLLM: base_url: "http://localhost:4000/v1"
• Open WebUI: base_url: "http://localhost:3000/api"
• Ollama: base_url: "http://localhost:11434/v1"

Commands

Command	Description
!help	Show available commands
!ping	Test connectivity
!reset	Clear your conversation history
!status	Show bot status and stats
!weather [location]	Get weather (uses GPS if no location given)

Usage Examples

Chat via @mention:

@ai What's the weather like today?
> Seattle: 52F, Partly Cloudy, Wind 8mph

Direct message:

DM: Tell me a short joke
> Why don't scientists trust atoms? They make up everything!

Weather command:

!weather Portland
> Portland: 48F, Rain, Wind 12mph

Architecture

┌─────────────────────────────────────────────────────────────┐
│                        MeshAI                                │
├─────────────────────────────────────────────────────────────┤
│  ┌─────────────┐    ┌─────────────┐    ┌─────────────────┐ │
│  │  Meshtastic │    │   Message   │    │   LLM Backend   │ │
│  │  Connector  │───▶│   Router    │───▶│   (pluggable)   │ │
│  │ Serial/TCP  │    │             │    │                 │ │
│  └─────────────┘    └─────────────┘    └─────────────────┘ │
│         │                 │                    │            │
│         │           ┌─────▼─────┐              │            │
│         │           │ Conversation│             │            │
│         │           │  History   │◀────────────┘            │
│         │           │  (SQLite)  │                          │
│         │           └───────────┘                           │
│         │                                                   │
│         ▼                                                   │
│  ┌─────────────┐                                           │
│  │  Responder  │  - 2.2-3s delay                           │
│  │             │  - Chunk to 150 chars                     │
│  │             │  - Max 2 messages                         │
│  └─────────────┘                                           │
└─────────────────────────────────────────────────────────────┘

Docker

Quick Start with Docker

# Clone and enter directory
git clone https://github.com/zvx-echo6/meshai.git
cd meshai

# Copy example config
cp config.example.yaml data/config.yaml
# Edit data/config.yaml with your settings

# For TCP connection to Meshtastic node:
docker compose -f docker-compose.yml -f docker-compose.tcp.yml up -d

# For Serial connection:
# First edit docker-compose.serial.yml to set your device path
docker compose -f docker-compose.yml -f docker-compose.serial.yml up -d

Docker Configuration

TCP Connection (recommended for Docker):

# data/config.yaml
connection:
  type: "tcp"
  tcp_host: "192.168.1.100"  # Your Meshtastic node IP
  tcp_port: 4403

Serial Connection:

# data/config.yaml
connection:
  type: "serial"
  serial_port: "/dev/ttyUSB0"

Then edit docker-compose.serial.yml to match your device path.

Environment Variables

You can pass the API key via environment variable instead of config file:

LLM_API_KEY=your-key-here docker compose up -d

Or create a .env file:

LLM_API_KEY=your-key-here

View Logs

docker compose logs -f meshai

Running as a Service

Create /etc/systemd/system/meshai.service:

[Unit]
Description=MeshAI - Meshtastic LLM Assistant
After=network.target

[Service]
Type=simple
User=your-user
WorkingDirectory=/path/to/meshai
ExecStart=/usr/bin/python3 -m meshai
Restart=always
RestartSec=10

[Install]
WantedBy=multi-user.target

Then:

sudo systemctl daemon-reload
sudo systemctl enable meshai
sudo systemctl start meshai

License

MIT License

Author

K7ZVX - matt@echo6.co