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What is Zigbee HA?

Last Updated on：2022-05-17 06:18:44
HA, short for Home Automation, is a transmission protocol launched by Connectivity Standards Alliance for the smart home industry. It defines and standardizes data transmission commands and fields in detail for smart home devices and defines device functions, device linkage, event triggering, remote communication, communication modes for each function, and more.
Origin and development of Zigbee HA
The first Zigbee specification was published in 2004, the second in 2006, and the third in 2007. Zigbee-2007 Specification defines two feature sets: Zigbee and Zigbee Pro. HA is based on Zigbee Pro and is one of the multiple application layer specifications for different fields. The application layers at that time included:
Zigbee HA (Zigbee Home Automation) → Smart Home
Zigbee LL (Zigbee Light Link) → Smart Lighting
Zignee HC (Zigbee Health Care) → Smart Healthcare
Zigbee RS (Zigbee Retail Services) → Smart Retail
Zigbee BA (Zigbee Building Automation) → Smart Building
Zigbee TS (Zigbee Telecommunication Services) → Smart Communication Service
The more commonly used ones are Zigbee HA and Zigbee LL.
However, the protocols of different application layers are not interconnected. Even if the same Zigbee HA protocol is used, each smart home manufacturer will customize the Zigbee HA for their own needs, resulting in the independence of different manufacturers' products. The Connectivity Standards Alliance organizes institutions specifically for Zigbee HA certification in pursuit of HA standardization, also known as Zigbee HA1.2 certification.
In 2016, the Alliance launched Zigbee 3.0, which uses the Zigbee Pro standard network layer protocol, implementing the interconnection of protocols between different application layers, further standardizing the Zigbee protocols, and representing a major step forward towards smart home interconnection.