examples/peripherals/usb/README.md
See the README.md file in the upper level examples directory for more information about examples.
Pin assignment is only needed for ESP chips that have a USB-OTG peripheral. If your board doesn't have a USB connector connected to the USB-OTG dedicated GPIOs, you may have to DIY a cable and connect D+ and D- to the pins listed below.
ESP BOARD USB CONNECTOR (type A)
--
| || VBUS (5V)
[USB_DM] ------> | || D-
[USB_DP] ------> | || D+
| || GND
--
| USB_DP | USB_DM | |
|---|---|---|
| ESP32-S2/S3 | GPIO20 | GPIO19 |
| ESP32-P4 2.0 | pin 50 | pin 49 |
| ESP32-P4 1.1 | GPIO27 | GPIO26 |
| ESP32-H4 | GPIO22 | GPIO21 |
Note: On the ESP32-P4, the USB 2.0 PHY pins are dedicated to USB-OTG functionality and cannot be used as general-purpose GPIOs.