About USB Serial OTG

About USB Serial OTG

On ESP32-S2 and ESP32-S3 the USB Serial OTG can be enabled. This allows to connect the USB OTG port to the 3D printer/CNC usb port if this one has Silicon Labs CP210x, FTDI FT23x or CP34x USB to UART converter.

Note:

Note: the 3D printer/CNC USB port may not provide enough current to power the ESP board. So you may need to add an external power supply to the ESP3D board.

Note:

Enabling USB Serial OTG at compilation does not activate the default output as USB Serial, by default it is Serial output.
To allow manual configuration, you need to enable USB output using WebUI or [ESP950] command