12 posts tagged with "meshtastic"

Designing a low-bandwidth wireless mesh network to run on low-power microprocessors with limited memory is challenging. Arguably the simplest mesh routing protocol is Flood Routing: each radio receiving a packet will rebroadcast this again, up to a defined hop limit. Although Meshtastic is based on this strategy, there are a few subtle, but significant enhancements. Most importantly, before a node rebroadcasts, it waits a short while and listens if anyone else is already rebroadcasting. If so, it will not rebroadcast again. Therefore, “Managed Flood Routing” would be a better name. For more details on the enhancements, please review our documentation.

The Federal Communications Commission (FCC) is currently considering a proposal from NextNav that could drastically reshape the 900 MHz band. While this proposal may seem like just another routine reconfiguration, it has significant implications for a broad range of users, particularly those who rely on unlicensed spectrum for innovative, community-driven projects. At the heart of the debate lies the potential impact on open-source initiatives like Meshtastic, an open-source, decentralized communication platform that operates in the 900 MHz ISM band.