USB OTG (On-The-Go) cable enables for example a simple connection of USB slave devices with a smartphone.
Retrokits / RK-006 Portable USB MIDI/Gate Hub
usb c - How can I make this USB-C connector as a host
Audio modeling Support - Camelot Tutorial 11: Master-Slave Systems
Connecting USB Keyboard to both USB Host Shield and PC - Project
How to bridge two USB devices just like an OTG - Quora
I2C Slave Addressing with 7-bit, 8-bit, and 10-bit
USB Component: USB Network
Retrokits / RK-006 Portable USB MIDI/Gate Hub
USB Host - ESP32-S2 - — ESP-IDF Programming Guide latest documentation
c++ - esp32 send data from a master to a slave CPU via UART (for
10 Things about OTG – Intehill
Can multiple esp32 controllers be synced in master and slave
USB to MBUS Slave Master Converter M-BUS host data debugging
USB 2.0 to SATA IDE Adapter - Drive Adapters and Drive Converters