Category: Meshtastic
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T-Beam Magnetometer Investigation
5/1/2026 – Update: over 100k hits on my Forgejo server, presumably bots, so I now require sign-in to explore. Contact me if you want an account. Introduction This is a deep technical dive, possibly only of interest to people programming the LilyGO T-Beam SUPREME. Much of the working below are snippets taken from Wikipedia. What’s…
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Using Low-Cost GNSS Receivers to Pre-Qualify Survey Sites for NOAA OPUS
Motivation Most GNSS survey failures are not due to equipment—they are due to poor site selection. Survey-grade GNSS equipment paired with NOAA OPUS processing can achieve centimeter-level accuracy, but deployment is not trivial. Site quality—sky visibility, multipath, and obstruction—directly impacts results. The central question: Can low-cost GNSS receivers be used as a reconnaissance tool to…
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Live Tracking T-Beam SUPREME
With ChatGPT, I have created C++ code which is uploaded to four T-Beam SUPREME units and causes each unit to send every 10 seconds its coordinates. Each unit records it’s transmission and it records on its SD card incoming transmissions from the other units. In addition, I have a base station “sniffer” Lora (Semtech 1303…
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T-Beams Of Bable
I have five LilyGO T-Beam SUPREMEs all transmitting and receiving every 15 seconds via Lora radio (Semtech 1302 chip). This is a test of mutliple units being active and then seeing how well a Lora sniffer works. The units are named: Amy Bob Cy Dan Ed I also have a Lora sniffer using the Semtech…
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LilyGO T-Beam SUPREME Case Comparison: Cost, Durability, and Field Practicality
After surveying available case designs and materials, printing several variants, and comparing service-bureau options, I concluded that the Alley Cat case offers the best balance of durability, access, and discretion for real field use. While I specified nylon for my print, other materials such as ASA (Acrylonitrile Styrene Acrylate) are also viable; the rest of…
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Voron Design – 3D Printer
pas pour les âmes sensibles [Not for the faint of heart]” – François Rabelais? Voron Design is a three dimensional printing (“3D”) project created in 2015 to create a no-compromise 3D printer that was fun to assemble and a joy to use. It had to be quiet, clean, pretty, and continue to operate 24 hours…