Harbor Breeze RAK WisBlock Solar Mesh Enclosure
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Parts to convert a Lowes solar lawn light into an off-grid, solar-powered mesh radio repeater for MeshCore/Meshtastic
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- Printables
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- Electronics
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- Creative Commons — Attribution — Noncommercial — Share Alike
Inspired by this guide for Meshtastic, this model, and the modifications noted in this guide, I created a mount for attaching a Harbor Breeze solar mesh node to a tree, with provisions for holding a right angle SMA connector and antenna. Also contained is a small mount for a WisBlock Mini Base Board, to be glued into the enclosure, enabling non-destructive removal of the radio module and access to the USB-C port.
Testing has been limited to a few weeks of deployment, with limited rain, so weatherproof-ness cannot be guaranteed, but they seem promising. I used marine silicone to seal the coax passing through the existing hole and adding a desiccant packet, but the design may be better suited long-term to a breather vent or similar to prevent condensation and mitigate water intrusion.
Based on the instructions here, I removed a few resistors from the integrated battery management/charging board, which keeps power output available while charging and removes the current-limiting resistors from the board. This preserves the battery protection features of the onboard chip, as the WisBlock doesn't have a low-voltage cutoff (I believe).
Painted with brown spray paint to make them less disruptive/more discrete.
A rough BOM is available here.
Printed parts are PETG, and require no supports. ASA may be better for longevity outdoors, but paint also helps with UV protection. 0.2mm layer height, 5 perimeters.