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Overview Meshtastic supports up to 8 simultaneous channels (index 0–7). Channel 0 is the primary channel; channels 1–7 are secondary channels used for specific groups or purposes. Channel Anatomy Every channel has three defining properties: Name – a human-...

How Channel Sharing Works Meshtastic encodes channel configuration as a URL containing a Base64-encoded protobuf payload. This URL can be displayed as a QR code or shared as a plain link. The payload includes the channel name, PSK, and modem preset settings. ...

Public Infrastructure Nodes Nodes acting as public infrastructure (repeaters, routers) should be configured with the default public PSK on channel 0. A repeater on a private channel only relays for nodes that share that exact channel configuration — it provide...

Budget Solar Repeater Build (~$80) This guide walks through assembling a low-cost, outdoor solar-powered LoRa repeater using the RAK4631 WisBlock platform. The build is weatherproof, low-power, and deployable on a single weekend afternoon. Parts List PartApp...

High-Power Mountain Repeater Build (~$200) This build is designed for demanding deployments — mountain summits, ridge lines, or any site that needs extended range and the ability to survive winter conditions. It pairs a LilyGO T-Beam with a 1–2W power amplifie...

Rooftop Gateway Build (Pi + LoRa) A rooftop gateway bridges your local LoRa mesh to the internet, enabling remote monitoring via meshmap.net, MQTT integration with Home Assistant, and APRS forwarding. This build uses a Raspberry Pi Zero 2W paired with a USB-co...

Architecture Overview The full telemetry pipeline runs: Meshtastic node → MQTT broker → Telegraf (or Python subscriber) → InfluxDB 2.x → Grafana dashboard. Each component is independently replaceable, so you can swap Telegraf for a custom Python scrip...

MeshCore Sensor Firmware MeshCore provides a dedicated Sensor firmware variant, separate from the Repeater and Client variants. Flash it onto a supported board (e.g. RAK4631, T-Echo) the same way you would any MeshCore firmware — via the MeshCore web ...

Site Selection Place sensors where you need data — not where it is convenient to access. Ideal sites are often inconvenient: a peak for a weather station, a stream bank for water level, a crop row for soil temperature. Choose the site first, then engi...

Overview All sensor-specific settings are accessed through the MeshCore CLI over a USB/serial connection (115200 baud) or via BLE using the MeshCore mobile app. Commands are case-insensitive. Changes take effect immediately and persist across reboots....

Urban Propagation at 915 MHz Dense urban environments present some of the most complex RF propagation conditions for mesh networks. Understanding these effects helps planners place nodes effectively and set realistic range expectations. Street Canyon Effect Bu...

Forest and Vegetation Propagation at 915 MHz Vegetation is one of the most significant impairments to 915 MHz propagation. Forested terrain requires a fundamentally different planning approach from open or urban environments. Foliage Attenuation 915 MHz is sig...

Mountain and Complex Terrain Propagation Mountain and highly variable terrain introduces propagation challenges — and opportunities — that differ fundamentally from flat-land or urban planning. Terrain masking is the dominant factor, but ridge placement can tu...

Water and Coastal Propagation Water surfaces create some of the most favorable RF propagation conditions at 915 MHz. Coastal and over-water deployments can achieve ranges that far exceed typical terrestrial links. Over-Water Propagation Water surfaces reflect ...