OpenThread

"OpenThread is an open-source implementation of the Thread networking protocol. Nest has released OpenThread to make the technology used in Nest products more broadly available to developers to accelerate the development of products for the connected home.

The Thread specification defines an IPv6-based reliable, secure and low-power wireless device-to-device communication protocol for home applications. More information about Thread can be found on threadgroup.org.

The features include:

• Highly portable: OS and platform agnostic with a radio abstraction layer
• Certified Thread Component: Implements all features defined in the Thread 1.1.1 specification
• Tools: Provides tools used for development, such as an integration into the Thread Test Harness and a Sniffer
• Small memory footprint

OpenThread implements all Thread networking layers including IPv6, 6LoWPAN, IEEE 802.15.4 with MAC security, Mesh Link Establishment, and Mesh Routing."

https://github.com/openthread/openthread

https://en.wikipedia.org/wiki/Thread_%28network_protocol%29

http://threadgroup.org/