Gateway hub is necessory for Zigbee or Bluetooth smart devices, like WIFI router is necessory for using WIFI smart devices. The signal flow is: mobile phone APP sends commands upto the Cloud, gateway receives commands from the Cloud and sends commands to smart devices, smart devices react.
WENZHOU NOVA NEW ENERGY CO., LTD / YUEQING NOVA ELECTRONICS CO., LTD, located in Wenzhou City, is a high-tech enterprise specialized in the R&D, manufacturing and marketing of Solar and Smart Home products since 2008.
