Esp32 S3 Devkitc Schematic. 5 5 4 4 3 3 2 2 1 1 d d c c b b a a esp usb: Development board that is part of the esp32 series.
![ESP32DEVKITC32D Bluetooth, BLE, and WiFi MCU Module](https://i2.wp.com/media.digikey.com/Photos/RDL/ESP32-DEVKITC-32D - Schematic 2.png)
This board has a rich peripheral set. 5 5 4 4 3 3 2 2 1 1 d d c c b b a a esp usb: Usb_dn usb_dp dtr rts u0rxd u0txd dtr rts chip_pu gpio0.