Routers are arranged among the coordinator as well as end devices which are accountable for messages routing among the various nodes. They choose a suitable channel to scan a channel as well as to find the most appropriate one through the minimum of interference, allocate an exclusive ID as well as an address to every device within the network so that messages otherwise instructions can be transferred in the network. For each network, there is simply one coordinator, used to perform different tasks. In this network, the coordinator is the most essential device which is placed at the origin of the system. The main function of these devices is to deliver the instructions and messages from the coordinator to the single end devices such as a light bulb. The devices used in this network are a router, coordinator as well as end devices. Zigbee technology works with digital radios by allowing different devices to converse through one another. It functions through the 2.4 GHz ISM band as well as includes a sub-GHz band. The legacy Zigbee devices have to turn into Zigbee end devices on a network of Zigbee Pro.
Because of the disparities within the options of routing, these devices should turn into non-routing ZEDs or Zigbee end devices (ZEDs) on a legacy Zigbee network. It is one kind of device which operates on a legacy Zigbee network. In the year 2007, Zigbee Pro like Zigbee 2007 was finalized. So, this Dotdot has worked for approximately all Zigbee devices as the default application layer. In the year 2017, the library was renamed with Dotdot by Zigbee Alliance and announced as a new protocol. A library includes a set of consistent commands, planned beneath groups called clusters with names like Home Automation, Smart Energy & Light Link of ZigBee.
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