ESP32-S3-WROOM-1, 8MB flash, 8MB octal PSRAM, dual USB-C

esp32-s3 wifi ble usb-otg lx7 dev-board

field	value
id	boards/espressif/esp32-s3-devkitc-1
kind	board
vendor	espressif
MPN	ESP32-S3-DevKitC-1-N8R8
revision	1.1.0
lifecycle	stable

Pinout

pin	aliases	default	voltage	alt_functions
GPIO0	BOOT	gpio	vdd_io	gpio
GPIO1	—	gpio	vdd_io	gpio, adc_in, touch
GPIO2	—	gpio	vdd_io	gpio, adc_in, touch
GPIO3	—	gpio	vdd_io	gpio, adc_in
GPIO4	—	gpio	vdd_io	gpio, adc_in, touch
GPIO5	—	gpio	vdd_io	gpio, adc_in, touch
GPIO6	—	gpio	vdd_io	gpio, adc_in, touch
GPIO7	—	gpio	vdd_io	gpio, adc_in, touch
GPIO8	SDA	gpio	vdd_io	gpio, i2c_sda, adc_in, touch
GPIO9	SCL	gpio	vdd_io	gpio, i2c_scl, adc_in, touch
GPIO10	—	gpio	vdd_io	gpio, adc_in, touch
GPIO11	—	gpio	vdd_io	gpio, adc_in, touch
GPIO12	—	gpio	vdd_io	gpio, adc_in, touch
GPIO13	—	gpio	vdd_io	gpio, adc_in, touch
GPIO14	—	gpio	vdd_io	gpio, adc_in, touch
GPIO15	—	gpio	vdd_io	gpio, adc_in
GPIO16	—	gpio	vdd_io	gpio, adc_in
GPIO17	TX1	gpio	vdd_io	gpio, uart_tx, adc_in
GPIO18	RX1	gpio	vdd_io	gpio, uart_rx, adc_in
GPIO19	USB_DM	usb_dm	vdd_io	usb_dm
GPIO20	USB_DP	usb_dp	vdd_io	usb_dp
GPIO21	—	gpio	vdd_io	gpio
GPIO38	—	gpio	vdd_io	gpio
GPIO39	—	gpio	vdd_io	gpio
GPIO40	—	gpio	vdd_io	gpio
GPIO41	—	gpio	vdd_io	gpio
GPIO42	—	gpio	vdd_io	gpio
GPIO43	TX0, U0TXD	uart_tx	vdd_io	uart_tx, gpio
GPIO44	RX0, U0RXD	uart_rx	vdd_io	uart_rx, gpio
GPIO45	—	gpio	vdd_io	gpio
GPIO46	—	gpio	vdd_io	gpio
GPIO47	—	gpio	vdd_io	gpio
GPIO48	—	gpio	vdd_io	gpio

Peripherals

peripheral	count
adc	2
i2c	2
i2s	2
pwm_channels	8
rmt	8
spi	4
touch	14
uart	3
usb	1

Build

field	value
frameworks	esp-idf, arduino, zephyr, micropython, platformio
flash	8.0 MB
psram	8.0 MB
ram	512 KB

Electrical

field	value
VCC	5.0 V nominal; 4.0–5.5 V range; source: usb-c
Current draw	240.0 mA active; 8.0 µA sleep
Logic	cmos_3v3; 3.3 V; NOT 5V tolerant
Power budget	500.0 mA

Expansion headers

J1

field	value
pin count	22
pitch	2.54 mm

Pin sequence:

3V3, 3V3, RST, GPIO4, GPIO5, GPIO6, GPIO7, GPIO15, GPIO16, GPIO17, GPIO18, GPIO8, GPIO3, GPIO46, GPIO9, GPIO10, GPIO11, GPIO12, GPIO13, GPIO14, 5V, GND

J3

field	value
pin count	22
pitch	2.54 mm

Pin sequence:

GND, 5V, GND2, GPIO19, GPIO20, GPIO21, RXD0, TXD0, GPIO1, GPIO2, GPIO42, GPIO41, GPIO40, GPIO39, GPIO38, GPIO37, GPIO36, GPIO35, GPIO0, GPIO45, GPIO48, GPIO47

USB discovery

VID	PID	description
303A	1001	ESP32-S3 native USB
10C4	EA60	CP210x bridge to UART

KiCad refs

field	value
symbol	hw-registry:ESP32-S3-DevKitC-1
footprint	hw-registry:ESP32-S3-DevKitC-1

Datasheet

• Manufacturer
• Archive (web.archive.org)

Tested

field	value
status	production-tested
by	rnd@southerniot.net
date	2026-02-14

Evidence: Used as primary bring-up board in 2+ years of in-house projects.

Description

Espressif's reference development board for the ESP32-S3-WROOM-1 N8R8 module. Two USB-C connectors — one wired to the on-module native USB (GPIO19/GPIO20), one through a CP210x UART bridge. Two 22-pin headers (J1, J3) expose the GPIOs that the WROOM-1 N8R8 variant brings out (GPIO0–GPIO21 plus GPIO38–GPIO48; GPIO33– GPIO37 are reserved internally for the octal PSRAM and not available externally).