!!! Overview
[{$pagename}] is an [IEEE 802.15.4]-based specification for a suite of high-level [communication] [protocols] used to create [Personal Area Networks] with small, [low-power|Lo] [digital radios|Wireless], such as for home automation, medical [device] data collection, and other low-power low-bandwidth needs, designed for small scale projects which need wireless connection. 


[{$pagename}] is a [Low-Power and Lossy Network], with low data rate, and [Wireless Network] for [Personal Area Networks]


[{$pagename}] [networks] are [Personal Area Networks] (or PANs). Each [{$pagename}] network is defined with a unique PAN identifier ([Zigbee PAN ID]), which is common among all devices of the same network. [{$pagename}] devices are either preconfigured with a PAN ID to join, or they can discover nearby networks and select a PAN ID to join.

[{$pagename}] supports both a 64-[bit] and a 16-bit PAN ID. Both PAN IDs are used to uniquely identify a network. [Devices] on the same Zigbee network must share the same 64-bit and 16-bit PAN IDs. If multiple [Zigbee Network]s are operating within range of each other, each [MUST] have unique PAN IDs.


!! [Zigbee Network] [Device] types

Zigbee defines three different device types: 
* [Zigbee Coordinator]
* [Zigbee Router]
* [Zigbee End Device]

Zigbee networks may have any number of end devices. In fact, a network can be composed of one Zigbee Coordinator, multiple end devices, and zero [Zigbee Routers].

!! Operating channels
[{$pagename}] uses direct-sequence spread spectrum modulation and operates on a fixed channel. The [IEEE 802.15.4] [Physical Layer] defines 16 operating channels (channels 11 to 26) in the 2.4 [GHz] frequency band. 


!! More Information
There might be more information for this subject on one of the following:
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* [#1] - [Zigbee|Wikipedia:Zigbee|target='_blank'] - based on information obtained 2022-01-07