ESP32-S3-DevKitC-1: specs and pinout

Espressif ESP32-S3-DevKitC-1 N16R8 board with 16 MB flash, 8 MB PSRAM and a 2.4 GHz Wi-Fi and Bluetooth LE module.

Every value cites its sourceOfficial pinout

Specs

Spec	Value	Source
Module (N16R8)	ESP32-S3-WROOM-1 (ESP32-S3-DevKitC-1-N16R8)	source
Flash	16 MB	source
PSRAM	8 MB	source
Antenna	PCB on-board antenna	source
Power regulator	5 V to 3.3 V LDO	source
USB-to-UART	Micro-USB port with on-board USB-to-UART bridge, transfer rates up to 3 Mbps	source
Native USB	ESP32-S3 full-speed USB OTG interface, USB 1.1	source
Microcontroller	ESP32-S3 dual-core Xtensa LX7, up to 240 MHz	Compoden listing
Wireless	2.4 GHz Wi-Fi (802.11 b/g/n), Bluetooth LE 5.0	Compoden listing

Power

	Value	Source
Supply	USB (default) or 5V pin, or 3V3 pin; use one of the three options	source

Pinout

Pin	Function	Voltage	Notes	Source
3V3 (J1-1)	3.3 V power supply	3.3 V		source
3V3 (J1-2)	3.3 V power supply	3.3 V		source
RST (J1-3)	EN			source
GPIO4 (J1-4)	RTC_GPIO4, GPIO4, TOUCH4, ADC1_CH3			source
GPIO5 (J1-5)	RTC_GPIO5, GPIO5, TOUCH5, ADC1_CH4			source
GPIO6 (J1-6)	RTC_GPIO6, GPIO6, TOUCH6, ADC1_CH5			source
GPIO7 (J1-7)	RTC_GPIO7, GPIO7, TOUCH7, ADC1_CH6			source
GPIO15 (J1-8)	RTC_GPIO15, GPIO15, U0RTS, ADC2_CH4, XTAL_32K_P			source
GPIO16 (J1-9)	RTC_GPIO16, GPIO16, U0CTS, ADC2_CH5, XTAL_32K_N			source
GPIO17 (J1-10)	RTC_GPIO17, GPIO17, U1TXD, ADC2_CH6			source
GPIO18 (J1-11)	RTC_GPIO18, GPIO18, U1RXD, ADC2_CH7, CLK_OUT3			source
GPIO8 (J1-12)	RTC_GPIO8, GPIO8, TOUCH8, ADC1_CH7, SUBSPICS1			source
GPIO3 (J1-13)	RTC_GPIO3, GPIO3, TOUCH3, ADC1_CH2			source
GPIO46 (J1-14)	GPIO46			source
GPIO9 (J1-15)	RTC_GPIO9, GPIO9, TOUCH9, ADC1_CH8, FSPIHD, SUBSPIHD			source
GPIO10 (J1-16)	RTC_GPIO10, GPIO10, TOUCH10, ADC1_CH9, FSPICS0, FSPIIO4, SUBSPICS0			source
GPIO11 (J1-17)	RTC_GPIO11, GPIO11, TOUCH11, ADC2_CH0, FSPID, FSPIIO5, SUBSPID			source
GPIO12 (J1-18)	RTC_GPIO12, GPIO12, TOUCH12, ADC2_CH1, FSPICLK, FSPIIO6, SUBSPICLK			source
GPIO13 (J1-19)	RTC_GPIO13, GPIO13, TOUCH13, ADC2_CH2, FSPIQ, FSPIIO7, SUBSPIQ			source
GPIO14 (J1-20)	RTC_GPIO14, GPIO14, TOUCH14, ADC2_CH3, FSPIWP, FSPIDQS, SUBSPIWP			source
5V (J1-21)	5 V power supply	5 V		source
G (J1-22)	Ground			source
G (J3-1)	Ground			source
TX (J3-2)	U0TXD, GPIO43, CLK_OUT1			source
RX (J3-3)	U0RXD, GPIO44, CLK_OUT2			source
GPIO1 (J3-4)	RTC_GPIO1, GPIO1, TOUCH1, ADC1_CH0			source
GPIO2 (J3-5)	RTC_GPIO2, GPIO2, TOUCH2, ADC1_CH1			source
GPIO42 (J3-6)	MTMS, GPIO42			source
GPIO41 (J3-7)	MTDI, GPIO41, CLK_OUT1			source
GPIO40 (J3-8)	MTDO, GPIO40, CLK_OUT2			source
GPIO39 (J3-9)	MTCK, GPIO39, CLK_OUT3, SUBSPICS1			source
GPIO38 (J3-10)	GPIO38, FSPIWP, SUBSPIWP, RGB LED		RGB LED on GPIO38 in v1.1 guide	source
GPIO37 (J3-11)	SPIDQS, GPIO37, FSPIQ, SUBSPIQ		Octal PSRAM boards: not available for external use	source
GPIO36 (J3-12)	SPIIO7, GPIO36, FSPICLK, SUBSPICLK		Octal PSRAM boards: not available for external use	source
GPIO35 (J3-13)	SPIIO6, GPIO35, FSPID, SUBSPID		Octal PSRAM boards: not available for external use	source
GPIO0 (J3-14)	RTC_GPIO0, GPIO0			source
GPIO45 (J3-15)	GPIO45			source
GPIO48 (J3-16)	GPIO48, SPICLK_N, SUBSPICLK_N_DIFF			source
GPIO47 (J3-17)	GPIO47, SPICLK_P, SUBSPICLK_P_DIFF			source
GPIO21 (J3-18)	RTC_GPIO21, GPIO21			source
GPIO20 (J3-19)	RTC_GPIO20, GPIO20, U1CTS, ADC2_CH9, CLK_OUT1, USB_D+			source
GPIO19 (J3-20)	RTC_GPIO19, GPIO19, U1RTS, ADC2_CH8, CLK_OUT2, USB_D-			source
G (J3-21)	Ground			source
G (J3-22)	Ground			source

Common mistakes

Powering from more than one source at once; the three power options are mutually exclusive (source)
Using GPIO35, GPIO36 or GPIO37 for your own signals on boards with Octal SPI memory; they are used internally (source) (listing states 8MB octal SPI PSRAM (source))
Assuming the RGB LED is on a fixed GPIO: the v1.1 guide places it on GPIO38 and older revisions differ; check the revision (source)

What we could not confirm

USB port conflict: listing says USB-C; the official guide describes a micro-USB port for the USB-to-UART bridge and a separate ESP32-S3 USB port (connector type not stated). Official description used.
GPIO logic level and per-pin current limits: not stated in the official guide.
Listing says 45 programmable GPIO pins; the official header tables were used instead of this count.
Pin names in the official J1 table print bare numbers in the Name column; the GPIO number from the Function column is used as the label.
Typical current draw: not stated in an official source.

Sources

Building with the ESP32-S3-DevKitC-1? Describe your project on Soldr: it assigns pins from the board's published pinout, checks power and logic levels, and shows how to wire every part.