VSCP & Friends
VSCP (Very Simple Control Protocol) is a framework for IoT/m2m tasks. The framework defines methods to have a common device discovery, a common configuration, a common way to interface with remote devices and a common way to update firmware of devices built on different architectures. A server is available that runs on many platforms that have a webserver/websocket/rest/driver and tcp/ip interface with ssl security.
Documentation in different formats is available here.
Guides on how to setup and test the system on different platforms can be found here.