Zigbee is an 802.15.4-based, low-power wireless mesh network standard, targeted at battery-powered devices in wireless control and monitoring applications.
Zigbee can use a defined frequency for each region, but 2.4GHz ISM bands are used globally in most commercial cases, \
1. Standard and History
|ZigBee Alliance||Zigbee 2005|
|DSSS, O-QPSK||2.400 ~ 2.4835 GHz||250 Kbps|
2. Power Consumption
|Transmit Power||Range||Power Save Mode||RX Mode||TX Mode|
|8 dBm||60 meter||2 uA||30 mA||50 mA|
3. Application Reference for IoT
|Standard||Network Topology||Internet Protocol||Battery Usage|
4. Devices and Role
|Device||Role and Function|
The coordinator forms the root of the network tree and may bridge to other networks.
It stores information about the network, including acting as the trust center and repository for security keys.
|Router||As well as running an application function, router devices can act as intermediate routers, passing data on to other devices.|
Contains just enough functionality to talk to the parent node and to run an application function.
The end device can operate on battery power.
5. Connection Sequence