The ESP32-S3-DevKitC-1 is an entry-level development board equipped with ESP32-S3-WROOM-1, a general-purpose Wi-Fi + Bluetooth® Low Energy MCU module that integrates complete Wi-Fi and Bluetooth Low Energy functions.
Most of the I/O pins on the module are broken out to the pin headers on both sides of this board for easy interfacing. Developers can either connect peripherals with jumper wires or mount ESP32-S3-DevKitC-1 on a breadboard.
Description of Components

Features:
- Wi-Fi and Bluetooth LE: Supports dual-mode connectivity with enhanced performance.
- ESP32-S3 Module: Features an Xtensa® 32-bit LX7 dual-core processor for better computing power.
- AI Acceleration: Built-in vector instructions for AI and machine learning applications.
- Extended I/O: Multiple GPIO pins are available for peripherals and sensors.
- USB OTG Support: The board includes a native USB interface with USB OTG functionality for additional connectivity.
- Low Power: Designed for low-power consumption, ideal for battery-operated applications.
The key components of the board are described in a counter-clockwise direction.
Key Component | Description |
---|---|
ESP32-S3-WROOM-1 | ESP32-S3-WROOM-1, are powerful, generic Wi-Fi + Bluetooth Low Energy MCU modules that have a rich set of peripherals. They provide acceleration for neural network computing and signal processing workloads. ESP32-S3-WROOM-1 and ESP32-S3-WROOM-2 comes with a PCB antenna. ESP32-S3-WROOM-1U comes with an external antenna connector. |
5 V to 3.3 V LDO | Power regulator that converts a 5 V supply into a 3.3 V output. |
Pin Headers | All available GPIO pins (except for the SPI bus for flash) are broken out to the pin headers on the board for easy interfacing and programming. For details, please see Header Block. |
USB-to-UART Port | A Micro-USB port used for power supply to the board, for flashing applications to the chip, as well as for communication with the chip via the on-board USB-to-UART bridge. |
Boot Button | Download button. Holding down Boot and then pressing Reset initiates Firmware Download mode for downloading firmware through the serial port. |
Reset Button | Press this button to restart the system. |
USB Port | ESP32-S3 full-speed USB OTG interface, compliant with the USB 1.1 specification. The interface is used for power supply to the board, for flashing applications to the chip, for communication with the chip using USB 1.1 protocols, as well as for JTAG debugging. |
USB-to-UART Bridge | Single USB-to-UART bridge chip provides transfer rates up to 3 Mbps. |
RGB LED | Addressable RGB LED, driven by GPIO38. |
3.3 V Power On LED | Turns on when the USB power is connected to the board. |
- ESP32-S3 Datasheet (PDF)
- ESP32-S3-WROOM-1 & ESP32-S3-WROOM-1U Datasheet (PDF)
- ESP32-S3-WROOM-2 Datasheet (PDF)
- ESP32-S3-DevKitC-1 Schematic (PDF)
- ESP32-S3-DevKitC-1 PCB layout (PDF)
- ESP32-S3-DevKitC-1 Dimensions (PDF)
- ESP32-S3-DevKitC-1 Dimensions source file (DXF) – You can view it with Autodesk Viewer online
For further design documentation for the board, please contact us at sales@espressif.com.
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