is a standard for wireless personal area networking, promoted by the ZigBee Alliance from 2002
. The system is designed to be simpler and cheaper than other WPANs such as Bluetooth
, and is aimed at applications with low data rates and low power consumption. It operates in the unlicensed 2.4 GHz, 915 MHz and 868 MHz bands, uses DSSS
, and focuses on the lower protocol layers (PHY and MAC). The data rate is 20 kbit/s per channel. Transmission range is between 10 m and 75 m.
The ZigBee Alliance has a web site at http://www.zigbee.org.