ESP32-S3-DevKitC-1

[中文]

This user guide will help you get started with ESP32-S3-DevKitC-1 and will also provide more in-depth information.

The ESP32-S3-DevKitC-1 is an entry-level development board equipped with ESP32-S3-WROOM-1, ESP32-S3-WROOM-1U, or ESP32-S3-WROOM-2, a general-purpose Wi-Fi + Bluetooth® LE MCU module that integrates complete Wi-Fi and Bluetooth LE 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.

ESP32-S3-DevKitC-1 with ESP32-S3-WROOM-1 Module

ESP32-S3-DevKitC-1 with ESP32-S3-WROOM-1 Module

The document consists of the following major sections:

Getting Started

This section provides a brief introduction of ESP32-S3-DevKitC-1, instructions on how to do the initial hardware setup and how to flash firmware onto it.

Description of Components

ESP32-S3-DevKitC-1 - front

ESP32-S3-DevKitC-1 - front

The key components of the board are described in a counter-clockwise direction.

Key Component

Description

ESP32-S3-WROOM-1/1U/2

ESP32-S3-WROOM-1, ESP32-S3-WROOM-1U, and ESP32-S3-WROOM-2 are powerful, generic Wi-Fi + Bluetooth LE 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.

ESP32-S3 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 GPIO48.

3.3 V Power On LED

Turns on when the USB power is connected to the board.

Note

For boards with ESP32-S3-WROOM-2 modules, the pins GPIO35, GPIO36 and GPIO37 are used for the internal communication between ESP32-S3 and SPI flash/PSRAM memory, thus not availablt for external use.

Start Application Development

Before powering up your board, please make sure that it is in good condition with no obvious signs of damage.

Required Hardware

  • ESP32-S3-DevKitC-1

  • USB 2.0 cable (Standard-A to Micro-B)

  • Computer running Windows, Linux, or macOS

Note

Be sure to use an appropriate USB cable. Some cables are for charging only and do not provide the needed data lines nor work for programming the boards.

Hardware Setup

Connect the board with the computer using USB-to-UART Port. Connection using ESP32-S3 USB Port is not fully implemented in software. In subsequent steps, USB-to-UART Port will be used by default.

Software Setup

Please proceed to Get Started, where Section Installation will quickly help you set up the development environment and then flash an application example onto your board.

Contents and Packaging

Ordering Information

The development board has a variety of variants to choose from, as shown in the table below.

Ordering Code

Module Integrated

Flash

PSRAM

SPI Voltage

ESP32-S3-DevKitC-1-N8

ESP32-S3-WROOM-1-N8

8 MB QD

3.3 V

ESP32-S3-DevKitC-1-N8R2

ESP32-S3-WROOM-1-N8R2

8 MB QD

2 MB QD

3.3 V

ESP32-S3-DevKitC-1-N8R8

ESP32-S3-WROOM-1-N8R8

8 MB QD

8 MB OT

3.3 V

ESP32-S3-DevKitC-1-N16R8V

ESP32-S3-WROOM-2-N16R8V

16 MB OT

8 MB OT

1.8 V

ESP32-S3-DevKitC-1-N32R8V

ESP32-S3-WROOM-2-N32R8V

32 MB OT

8 MB OT

1.8 V

ESP32-S3-DevKitC-1U-N8

ESP32-S3-WROOM-1U-N8

8 MB QD

3.3 V

ESP32-S3-DevKitC-1U-N8R2

ESP32-S3-WROOM-1U-N8R2

8 MB QD

2 MB QD

3.3 V

ESP32-S3-DevKitC-1U-N8R8

ESP32-S3-WROOM-1U-N8R8

8 MB QD

8 MB OT

3.3 V

Note

In the table above, QD stands for Quad SPI and OT stands for Octal SPI.

Retail Orders

If you order a few samples, each board comes in an individual package in either antistatic bag or any packaging depending on your retailer.

For retail orders, please go to https://www.espressif.com/en/contact-us/get-samples.

Wholesale Orders

If you order in bulk, the boards come in large cardboard boxes.

For wholesale orders, please go to https://www.espressif.com/en/contact-us/sales-questions.

Hardware Reference

Block Diagram

The block diagram below shows the components of ESP32-S3-DevKitC-1 and their interconnections.

ESP32-S3-DevKitC-1 (click to enlarge)

ESP32-S3-DevKitC-1 (click to enlarge)

Power Supply Options

There are three mutually exclusive ways to provide power to the board:

  • USB-to-UART Port and ESP32-S3 USB Port (either one or both), default power supply (recommended)

  • 5V and G (GND) pins

  • 3V3 and G (GND) pins

Header Block

The two tables below provide the Name and Function of the pins on both sides of the board (J1 and J3). The pin names are shown in ESP32-S3-DevKitC-1 - front. The numbering is the same as in the Board Schematic (PDF).

J1

No.

Name

Type 1

Function

1

3V3

P

3.3 V power supply

2

3V3

P

3.3 V power supply

3

RST

I

EN

4

4

I/O/T

RTC_GPIO4, GPIO4, TOUCH4, ADC1_CH3

5

5

I/O/T

RTC_GPIO5, GPIO5, TOUCH5, ADC1_CH4

6

6

I/O/T

RTC_GPIO6, GPIO6, TOUCH6, ADC1_CH5

7

7

I/O/T

RTC_GPIO7, GPIO7, TOUCH7, ADC1_CH6

8

15

I/O/T

RTC_GPIO15, GPIO15, U0RTS, ADC2_CH4, XTAL_32K_P

9

16

I/O/T

RTC_GPIO16, GPIO16, U0CTS, ADC2_CH5, XTAL_32K_N

10

17

I/O/T

RTC_GPIO17, GPIO17, U1TXD, ADC2_CH6

11

18

I/O/T

RTC_GPIO18, GPIO18, U1RXD, ADC2_CH7, CLK_OUT3

12

8

I/O/T

RTC_GPIO8, GPIO8, TOUCH8, ADC1_CH7, SUBSPICS1

13

3

I/O/T

RTC_GPIO3, GPIO3, TOUCH3, ADC1_CH2

14

46

I/O/T

GPIO46

15

9

I/O/T

RTC_GPIO9, GPIO9, TOUCH9, ADC1_CH8, FSPIHD, SUBSPIHD

16

10

I/O/T

RTC_GPIO10, GPIO10, TOUCH10, ADC1_CH9, FSPICS0, FSPIIO4, SUBSPICS0

17

11

I/O/T

RTC_GPIO11, GPIO11, TOUCH11, ADC2_CH0, FSPID, FSPIIO5, SUBSPID

18

12

I/O/T

RTC_GPIO12, GPIO12, TOUCH12, ADC2_CH1, FSPICLK, FSPIIO6, SUBSPICLK

19

13

I/O/T

RTC_GPIO13, GPIO13, TOUCH13, ADC2_CH2, FSPIQ, FSPIIO7, SUBSPIQ

20

14

I/O/T

RTC_GPIO14, GPIO14, TOUCH14, ADC2_CH3, FSPIWP, FSPIDQS, SUBSPIWP

21

5V

P

5 V power supply

22

G

G

Ground

J3

No.

Name

Type

Function

1

G

G

Ground

2

TX

I/O/T

U0TXD, GPIO43, CLK_OUT1

3

RX

I/O/T

U0RXD, GPIO44, CLK_OUT2

4

1

I/O/T

RTC_GPIO1, GPIO1, TOUCH1, ADC1_CH0

5

2

I/O/T

RTC_GPIO2, GPIO2, TOUCH2, ADC1_CH1

6

42

I/O/T

MTMS, GPIO42

7

41

I/O/T

MTDI, GPIO41, CLK_OUT1

8

40

I/O/T

MTDO, GPIO40, CLK_OUT2

9

39

I/O/T

MTCK, GPIO39, CLK_OUT3, SUBSPICS1

10

38

I/O/T

GPIO38, FSPIWP, SUBSPIWP

11

37

I/O/T

SPIDQS, GPIO37, FSPIQ, SUBSPIQ

12

36

I/O/T

SPIIO7, GPIO36, FSPICLK, SUBSPICLK

13

35

I/O/T

SPIIO6, GPIO35, FSPID, SUBSPID

14

0

I/O/T

RTC_GPIO0, GPIO0

15

45

I/O/T

GPIO45

16

48

I/O/T

GPIO48, SPICLK_N, SUBSPICLK_N_DIFF, RGB LED

17

47

I/O/T

GPIO47, SPICLK_P, SUBSPICLK_P_DIFF

18

21

I/O/T

RTC_GPIO21, GPIO21

19

20

I/O/T

RTC_GPIO20, GPIO20, U1CTS, ADC2_CH9, CLK_OUT1, USB_D+

20

19

I/O/T

RTC_GPIO19, GPIO19, U1RTS, ADC2_CH8, CLK_OUT2, USB_D-

21

G

G

Ground

22

G

G

Ground

1

P: Power supply; I: Input; O: Output; T: High impedance.

For description of function names, please refer to Chip Datasheet (PDF).

Pin Layout

ESP32-S3-DevKitC-1 (click to enlarge)

ESP32-S3-DevKitC-1 Pin Layout (click to enlarge)

Hardware Revision Details

This is the first revision of this board released.