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, a set ...

Did you know the ESP32 can be a USB host? Well it can, and [Volos] uses host mode to build this fun little word processor. The venerable ESP32 has a well-known USB device mode. Anyone who has ...