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Wireless sensor networks are often found in the fields of home security, industrial control and maintenance, medical assistance and traffic monitoring and the appearance of ZigBee/IEEE 802.15.4 indicates a network system which is highly reliable, cost-effective, low power consumption, programmable and fast establishing. Currently, many of the wireless sensor network systems are now using ZigBee to implement the designs. A smart sensor network is the infrastructure of home automation and supervisory control systems, as the proposed functions such as intelligence entrance guards management, home security, environmental monitor and light control can be implemented by a smart network integrating with multimedia access service, image processing, security, and sensor and control technologies. Details of the development process of a smart home network in Taiwan based on ZigBee technology with the combination of smart home appliance communication protocol, SAANet, will be given in this article.