What are the ZigBee Device Objects?
top ZigBee Device Objects (ZDO) are an application solution residing within the Application Layer (APL) and above the Application Support Sub-layer (APS) in the ZigBee stack architecture. ZDO are responsible for defining the role of devices within the network (e.g., ZigBee coordinator or end device), discovering devices on the network and determining which application services they provide, initiating and/or responding to binding requests and establishing a secure relationship between network devices. From Application point of view, ZDO is an interface to the ZigBee stack (together with the Application Support Sub-layer). How does a Device/Service Discovery process work? top Device discovery is the process whereby a ZigBee device can discover other ZigBee devices by initiating queries that are broadcast or unicast addressed. Service discovery is the process whereby services available on endpoints at the receiving device are discovered by external devices. Service means the interfaces d
