IoT market landscape

Many IoT vendors at the last IoT conference in Amsterdam (27-28 June 2018) prefer ZigBee as the connectivity protocol to RF or WiFi due to very low power and advanced functionalities.

Comparison of various IoT connectivity
Benchmark of energy consumption

However, there are 2 main concerns:
1) it brings proprietaries to the market (must be connected to gateway from the same vendor);
2) the devices are still expensive compared to other connectivity such as RF (nearly 3-5x)

IoT device: RF vs. ZigBee

However, a universal ZigBee gateway project is available out there. Check it out: I used it to connect to my ZigBee sensors at my home.

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