Meshtastic is an open-source, off-grid mesh networking project that lets you send messages and
view node locations over long distances without cellular service or the internet, using inexpensive
LoRa radio hardware.

Features include:
<ul><li>Text messaging between nodes on the mesh network</li><li>Encrypted channels for private group communication</li><li>Node management and device configuration</li><li>Works entirely offline — no internet required</li></ul>
Connect to your Meshtastic device over Bluetooth, USB serial, or Wi-Fi.