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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 m...

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-...

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 page walks through IP ratings, c...

The gasket between the lid and body of your enclosure gets all the attention, but cable penetrations are the number-one field failure mode in outdoor electronics. Water does not enter through a well-maintained lid seal - it enters through poorly installed or i...

A perfectly sealed enclosure with no cable gland defects can still suffer moisture damage from condensation. This page explains why condensation occurs in sealed enclosures and the proven methods to prevent it. Why Condensation Happens When you seal an enclo...

Heat is the silent killer of outdoor electronics. A node that operates flawlessly through rain and vibration can fail within months if it repeatedly reaches thermal extremes inside its enclosure. This page covers the mechanisms of solar heating, its effects on...

Practical Sealing Techniques This page consolidates the step-by-step procedures for assembling and commissioning a sealed outdoor enclosure, along with a maintenance checklist to keep your nodes running reliably year after year. Step-by-Step Enclosure Assemb...

Meshtastic provides three infrastructure-oriented device roles for nodes that exist to extend network reach rather than serve end users. Choosing the wrong role wastes resources, creates unnecessary air-time, or silently breaks the capabilities operators expec...