Hello, Read this: https://www.bluetooth.com/what-is-bluetooth-technology/how-it-works/le-mesh https://www.bluetooth.com/what-is-bluetooth-technology/how-it-works/le-mesh/mesh-faq http://www.networkworld.com/article/3209667/internet-of-things/bluetooth-mesh-networks-is-a-standards-body-right-for-iot-innovation.html Bertus