Using Bluetooth on a desktop computer is now such a seamless process; it’s something built-in and just works. Behind that ubiquity is a protocol layer called HCI, or Host Controller Interface… ...

Besides the obvious advantage of enabling Bluetooth capabilities for your Home Assistant interface, an ESP32-powered proxy allows you to control and automate smart devices over a large area.

How it works is simple: you can track devices using Bluetooth on the ESP32, and through a combination of presence and signal strength, you can define a sensor that changes to an "on" state when ...

In the past we’ve seen the ESP32 used to create a Bluetooth game controller, but the ability to emulate a keyboard obviously offers quite a bit more flexibility.

Reports of undocumented Bluetooth HCI commands from ESP32 chips are doing the rounds. They open up a security flaw.