Espressif ESP32-S2 Programming Manual page 27

Chapter 1. Get Started
Getting Started
This section provides a brief introduction of ESP32-S2-DevKitC-1, instructions on how to do the initial hardware
setup and how to flash firmware onto it.
Description of Components
Key Component
ESP32-S2-SOLO or ESP32-
S2-SOLO-U
3.3 V Power On LED
USB-to-UART Bridge
Pin Headers
ESP32-S2 USB Port
Reset Button
Boot Button
USB-to-UART Port
RGB LED
5 V to 3.3 V LDO
Start Application Development
good condition with no obvious signs of damage.
Espressif Systems
Fig. 11: ESP32-S2-DevKitC-1 - front
The key components of the board are described in a clockwise direction.
Description
ESP32-S2-SOLO and ESP32-S2-SOLO-U are two general-purpose Wi-Fi
modules. ESP32-S2-SOLO comes with an on-board PCB antenna and ESP32-
S2-SOLO-U comes with a connector for an external antenna. ESP32-S2-
SOLO or ESP32-S2-SOLO-U on the board may come either with a 4 MB
flash, or a 4 MB flash plus a 2 MB PSRAM embedded in the chip.
Turns on when the USB power is connected to the board.
Single USB-to-UART bridge chip provides transfer rates up to 3 Mbps.
All available GPIO pins (except for the SPI bus for flash) are broken out to the
pin headers on the board. For details, please see
ESP32-S2 full-speed USB OTG interface, compliant with the USB 1.1 spec-
ifications. The interface is used for power supply to the board, for flashing
applications to the chip, and for communication with the chip using USB 1.1
protocols.
Press this button to restart the system.
Download button. Holding down Boot and then pressing Reset initiates
Firmware Download mode for downloading firmware through the serial port.
A Micro-USB port used for power supply to the board, for flashing applications
to the chip, as well as the communication with the chip via the on-board USB-
to-UART bridge.
Addressable RGB LED, driven by GPIO18.
Power regulator that converts a 5 V supply into a 3.3 V output.
Before powering up your ESP32-S2-DevKitC-1, please make sure that it is in
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Header Block.
Release v4.4