MeshCore is an open-source, MIT-licensed, decentralized mesh networking protocol that uses LoRa radio technology for secure, off-grid text communication. It allows for reliable, long-range messaging without cellular or internet connectivity, often used for emergency response, IoT networks, and private secure communications, boasting up to 64-hop message propagation.

Key aspects of the MeshCore system include:

• Architecture: Unlike fully ad-hoc networks, MeshCore typically relies on a hierarchy of dedicated stationary repeaters and user-carried nodes (companions), though it supports a “Client Repeat Mode” for temporary infrastructure.
• Efficiency: MeshCore is designed to minimize radio traffic compared to other systems, employing “structured routing” that sends messages specifically to the target node rather than broadcasting to all nodes.
• Hardware: It operates on commonly available LoRa hardware (such as those from LilyGo, e.g., T-Deck).
• Application: It operates on sub-gigahertz bands for long-distance communication (up to 100+ km) and allows for encrypted messages.
• Development & Features: The system features advanced features like remote server administration via LoRa, which can be enabled by registering hardware. 

MeshCore vs. Meshtastic
While both utilize LoRa, MeshCore is distinguished by its 64-hop limit (vs. 7 in Meshtastic) and its focus on efficient, structured routing over broadcast-heavy methods. 

Some of us have already explored Meshtastic and is pleased with it ability in asset tracking and sensor data like weather. MeshCore will fill a need for low power message traffic that both hams and non hams can use for very little money.