We are now ready to implement our first concentrator. The goal will be to create a concentrator that includes both our sensor and our actuator into a single physical device. It will work seamlessly with the controller application developed in Chapter 10, The Controller, since each embedded node registers itself as a separate thing. The details of this implementation can be found in the ConcentratorXmpp project, in the Mastering Internet of Things GitHub repository.
Instantiating the concentrator is easy. We first add a reference to the Waher.Networking.XMPP.Concentrator.UWP NuGet package to our project (if we're not doing an UWP app, we add the Waher.Networking.XMPP.Concentrator NuGet). We then simply create the object, with a reference to the XMPP client object we use, and reference to all the root data sources we define. We will define only one data source, the MeteringTopology data source. It is the default data source for embedded...
