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Overview#

Zigbee 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 digital radios, 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.

Zigbee is a Low-Power and Lossy Network, with low data rate, and Wireless Network for Personal Area Networks

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

Zigbee 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 Networks 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

An end device is essentially a reduced version of a router. This device:

• Can join existing networks and send and receive information, but cannot act as messenger between any other devices.
• Cannot allow other devices to join the network.
• Uses less expensive hardware and can power itself down intermittently, saving energy by temporarily entering a non responsive sleep mode.
• Always needs a ZigBee Router or the coordinator to be its parent device. The parent helps end devices join the network, and stores messages for them when they are asleep.

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.

More Information#

There might be more information for this subject on one of the following:

• Book
• IEEE 802
• IEEE 802.15.4
• Thread network layer
• Zigbee Coordinator
• Zigbee End Device
• Zigbee Network
• Zigbee node

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• [#1] - Zigbee - based on information obtained 2022-01-07