https://blog.kernelstub.dev/tags/meshtastic/Recent content in Meshtastic on Prepakis Georgios | Kernelstub | Security ResearcherHugoen-USSun, 18 Jan 2026 00:00:00 +0000https://blog.kernelstub.dev/posts/how-i-built-an-off-grid-meshtastic-lora-radio/Sun, 18 Jan 2026 00:00:00 +0000https://blog.kernelstub.dev/posts/how-i-built-an-off-grid-meshtastic-lora-radio/<p>I wanted a way to send text messages across kilometers of terrain without a cell tower, without Wi-Fi, and without paying anyone a monthly fee for the privilege. That&rsquo;s basically the pitch for Meshtastic: cheap LoRa radios that form a self-healing mesh network and pass short messages, GPS positions, and telemetry from node to node. Pair that with solar power and you get something that can sit on a hilltop indefinitely, which is exactly what I set out to build. This post walks through the whole thing: the hardware, the firmware, the antenna theory I had to relearn the hard way, and what I&rsquo;d change next time.</p>