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.