Building LAN-Connected Device Types

LAN connected devices communicate with the SmartThings hub over the LAN. An example of such a device is the Sonos system.

When developing a device handler for a LAN device, you must create a service manager SmartApp that will handle discovery of devices on the LAN, in some cases communicate with the device, and react to any device changes that occur via events.

This guide overviews the concept of the service manager/device handler architecture and also gives an example of both the service manager and device handler creation.

Table of Contents:

• Division of Labor
  • Service-Manager Responsibilities
  • Device Handler Responsibilities
  • How It All Works
• Building the Service Manager
  • Discovery
  • Handling Updates (Adds/Changes/Deletes)
  • Creating Child Devices
• Building the Device Type
  • Making Outbound HTTP Calls with HubAction
  • Overview
  • Creating a HubAction Object
  • Parsing the Response
  • Getting the Addresses
  • REST Requests
  • UPnP/SOAP Requests
  • Subscribing to Device Events
  • References and Resources