Author: Kai Ren

Kai Ren is Technical Program Manager for the APAC region at the Bluetooth SIG. He has more than 8 years of experience in design and development of wireless sensor networks, specializing in short range, low power wireless technology. His goal at the Bluetooth SIG is to build out Bluetooth’s developer program in the APAC region, helping developers bring innovative applications and products to market.
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Bluetooth Mesh Networking: Friendship

Bluetooth® Low Energy (LE) is one of the world’s most power-efficient, short-range wireless communications technologies. Its low power consumption is…

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Bluetooth legacy pairing – out of band

In previous articles, we touched on topics such as passkey entry and numeric comparison, which are two types of pairing…

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Bluetooth LE legacy pairing passkey entry

In my previous article on Bluetooth® pairing key generation methods, I talked about how, if the initiating and responding device meet some…

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Bluetooth pairing key generation methods

In our Bluetooth® pairing feature exchange article, we talked about the pairing feature exchange in Bluetooth® LE. The pairing feature…

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Bluetooth pairing feature exchange

In the Bluetooth® Core Specification, there are three major architectural layers: controller, host, and application. In the host layer, there…