![]() ![]() Factors like low-cost units, usability and compatibility take precedence over implementing security, at least that is the opinion of several security researchers. Overall, the creators of ZigBee made it secure, but there is enough evidence pointing to the contrary. Some experts deem that its reliability increases with its growth – the more devices are connected, the better. The mesh topology expands the reach of networks and eliminates single points of failure. ZigBee is based on either a star or a mesh topology. ![]() ![]() The ZigBee standard operates on top of the IEEE 802.15.4 physical radio specification. The complete ZigBee protocol stack: By way of illustration: “ZigBee transmissions require 1/1,000th or less of the power required to transmit Wi-Fi ( What Smart Home and IoT Devices Makers Need to Know about ZigBee 3.0 by Cees Links).”Īdvantages of preferring ZigBee to the other standards: low power usage/long battery lifetime, the support of a considerable number of nodes in a single network (up –to 65,000), the simplified deployment, the low costs and worldwide usage. ![]()
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