It uses the USB-to-UART bundled with the ESP32 for the “USB” part. And then implements the serial HCI for the “Bluetooth dongle” part.

There are already many cheap ESP32 drones on AliExpress, or you can even make an ESP32 DIY drone for about $12, but ...

The ESP32-S3 takes the ESP to a new level, packing as it does more I/O, onboard USB, and an updated version of the two Tensilica cores alongside Bluetooth version 5.

While similar ESP32-S3 boards like the LILYGO T-HMI exist, the compact USB-dongle form factor of the ESP32-S3-LCD-1.47 makes it an interesting option for those seeking a development board with an ...

The CL-32, his latest creation, features an E Ink display powered by an ESP32-S3 SoC. ... The module, meanwhile, also hosts a microSD card socket, a USB Type-C port, battery posts, and so on.