Zynet is an application to monitor and regulate an electric kettle according to a specified configuration. Currently it is written written as a Node REST API with a controller written in Python, this is the rewrite using WebSocket and the RxJS library. It's still in the early stages but the descriptions below outline the functionality this rewrite will ultimately replace.

The server hosts the WebSocket connection and broadcasts messages between the controller and client. Updates are pushed from the controller to the client and the client pushes configuration changes to the controller.

The controller is responsible for maintaining mash temperature by toggling relays according to PID logic. It sends updates to the server indicating the current mash temperature and relay state.

The Angular 4 web client sets the configuration for the controller to use and then listens for updates on that configuration.