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Introduction ​

MeshSat is a unified message routing gateway that bridges mesh radios, satellite modems, cellular networks, and IP-based services into a single coherent system. Messages arrive on any transport and can be routed to any other transport based on configurable policies.

The MeshSat Family ​

MeshSat ships as three products, each targeting a different deployment scenario:

MeshSat Bridge ​

The standalone gateway. A single Go binary that runs on a Raspberry Pi (or any ARM64/x86 machine) and connects directly to hardware — serial ports, USB devices, and network interfaces. Bridge is fully self-contained with no cloud dependency.

  • Runs on Raspberry Pi 4/5, ARM64 SBCs, or x86/amd64 servers
  • Direct serial access to Meshtastic radios, Iridium modems, and more
  • Local SQLite database for message history and configuration
  • REST API and WebSocket for integration
  • Web dashboard for monitoring and management

MeshSat Hub ​

The multi-tenant SaaS platform. Hub manages fleets of Bridge instances across multiple organizations. It provides centralized authentication, tenant isolation, API key management, and aggregated monitoring.

  • OAuth2/OIDC authentication
  • Multi-tenant with full data isolation
  • NATS and MQTT message bus
  • MariaDB Galera cluster for shared state
  • Per-tenant SQLite for message storage

MeshSat Android ​

The mobile gateway. An Android app that turns a phone into a portable MeshSat node using BLE for Meshtastic, SPP for Iridium, and native SMS for cellular.

  • BLE mesh networking with Meshtastic devices
  • SPP serial for Iridium satellite modems
  • Native SMS gateway
  • ONNX Runtime for on-device ML inference
  • Jetpack Compose UI

Next Steps ​

Made by MeshSat