Top 3 C++ mesh-network Projects

openthread

1 3,364 9.7 C++

OpenThread released by Google is an open-source implementation of the Thread networking protocol

Project mention: How to know if device is being used as bridge? | /r/MatterProtocol | 2023-12-10

See https://github.com/openthread/openthread/issues/3311 You probably need an nRF dongle (costs only a few bucks. I think I bought 2 for €12 a year ago.)

firmware

56 2,734 9.9 C++

Meshtastic device firmware (by meshtastic)

Project mention: Show HN: Extend Zigbee sensor range with LoRaWAN | news.ycombinator.com | 2024-03-18

This is a fantastic idea, thanks for sharing. I feel like LoRaWAN and LoRAMESH are the perfect solution for shuffling messaging around for home and property sensors, easily traversing a couple miles in poor conditions.
Prior to seeing this I was thinking about how to use the Meshtastic [0] project to fundamentally provide simple UDP services for message brokering over LoRa. There are so many sensors that could easily hook or connect to devices acting as network routers that could bridge other protocols across long distances very easily.
Have you looked at doing something similar with ZWave at all?
[0] https://meshtastic.org/

InfluxDB

www.influxdata.com sponsored

Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
QuantumGate

2 105 0.0 C++

QuantumGate is a peer-to-peer (P2P) communications protocol, library and API written in C++.

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).