It is almost litotic to describe the world of IoT wireless protocols as confusing, as there are so many options, but there are some signs of consolidation for low power communications, largely indoors. In this environment, Thread and Bluetooth Low Energy (BLE) are cornering the field, pulling ahead of the successors to earlier contenders, such as Zigbee and Zwave. The whole IoT wireless communication field broadly comes down to three categories. First come the full speed options of cellular or WiFi, which are required for some of the more data-intensive IoT applications, such as video surveillance. Second is low power WAN, designed to serve outdoor applications in monitoring and smart metering involving transactions that are large in number but small…