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The MeshCore serial console provides direct access to repeater state and diagnostic information. Connecting via USB to a deployed repeater is the most reliable way to diagnose problems that cannot be addressed remotely. Connecting to the Serial Console On Win...

Deploying a MeshCore network for a community requires planning beyond simply placing repeaters — you need to think about coverage, redundancy, operator coordination, and long-term maintenance. Phase 1: Define Coverage Goals Before placing a single node, answe...

If you're building a community mesh from scratch, choosing between MeshCore and Meshtastic is one of the first decisions. This page provides a framework for that decision. The Most Important Factor: Community The single most important factor is what your loca...

Mesh Networking in Amateur Radio Emergency Service (ARES) Operational Note: This page may be consulted during active emergency operations. All procedures are based on current FCC regulations and ARRL ARES guidelines as of 2025. Verify local ARES group ...

Integrating with Served Agencies Operational Note: This page provides guidance for ARES operators and mesh advocates working with served agencies including Red Cross, hospitals, EOCs, and fire/EMS. Establish relationships before an emergency — these co...

Running a Mesh-Enabled EMCOMM Exercise Planning Note: This page is a planning and evaluation guide for emergency communications exercises that incorporate LoRa mesh alongside traditional voice operations. Use this as a template and adapt to your local ...

Winlink and LoRa Mesh: Complementary Systems Key Message: Winlink and LoRa mesh serve different but complementary roles in emergency communications. Serious EMCOMM operators use both — choose the right tool for each message type. What Is Winlink? Wi...

Building a Meshtastic-to-Internet Bridge Technical Level: This page assumes basic familiarity with Python, MQTT, and Raspberry Pi or similar Linux-based hardware. All example code is production-grade and used in real EMCOMM deployments. Architecture Ov...

Pre-Positioning Mesh Infrastructure for Disasters Core Principle: Infrastructure that survives a disaster is infinitely more valuable than infrastructure deployed after one. Pre-position before the threat window, not during it. Cache and Deploy vs. Pre...

Mesh Communications During Active Disasters If you are reading this during an active emergency: Jump to the Quick Start section below. Full context follows. Quick Start: Mesh Operations During Active Disaster Power on all go-bag/mobile nodes. A...

Building Neighborhood Disaster Preparedness Networks Target Audience: CERT team leaders, neighborhood emergency preparedness group organizers, block captains, and city OES liaisons. No amateur radio license required for the core mesh network described he...

Short Answer For most LoRa mesh nodes: a 5W panel for nRF52840-based nodes, 10-20W for ESP32-based nodes. For Raspberry Pi gateways: 20-40W. The Calculation Solar system sizing is a four-step calculation: Measure your node's current draw — Use a USB inline...

Diagnosing Night Drain If your solar node runs fine during daylight but goes offline overnight, you have one of three problems: undersized battery, incorrect charge controller settings, or excessive power draw. Step 1: Verify Actual Battery Capacity First, me...

Short Answer: LiFePO4 for outdoor deployments Lithium Iron Phosphate (LiFePO4) is the recommended battery chemistry for any permanent outdoor LoRa mesh installation. It is safer, more durable, and handles temperature extremes far better than standard LiPo batt...

Meshtastic Hop Limits In Meshtastic, every packet is born with a "hop limit" — a countdown that decrements each time the packet is relayed by a node. When the hop limit reaches zero, the packet is dropped and not forwarded further. Default hop limit: 3 — A ...

Why Duplicates Happen Duplicate messages in Meshtastic are normal and expected — they are a feature of flood routing, not a bug. When a node receives a message, it rebroadcasts it. If you're within radio range of multiple nodes that each received and retransmi...

What Channel Utilization Means Channel utilization is the percentage of time the LoRa radio channel is occupied by transmissions. It's displayed in the Meshtastic app as a percentage (visible in the channel info or device telemetry). Think of it like a single-...

Choosing an Outdoor Enclosure Picking the right enclosure is one of the most consequential decisions in any outdoor LoRa build. A node that works flawlessly on your workbench can fail within weeks if rain, dust, or condensation reaches the electronics. This p...