The Information Reporting feature
mbed Device Server uses the Information Reporting to observe any changes in a registered Resource on the client. The server registers to observe the Resource. When the Resource changes, it sends a notification with its new value to all servers who asked to observe it.
The interface supports the following sub-features:
The Observe feature
mbed Device Server initiates an observation request to observe the changing value of either an Object, Object Instance or Resource.
Tip: Related parameters for the Observe operation are described in the Write Attributes section.
The Notify feature
The client sends the Notify operation to mbed Device Server during a valid observation on a Resource, when the notification conditions are met.
mbed Device Server sends the Cancel Observation operation to the client to end an observation relationship for an Object Instance or a Resource.