BoardEspressif

ESP32-S3-DevKitC-1

Official Espressif ESP32-S3 evaluation board: revision differences (v1.0/v1.1), ordering variants, J1/J3 pin headers and every published field with its fixed official source.

Specifications

Specifications
Flash	8 MB · SKU ESP32-S3-DevKitC-1-N8

Assembly & compatibility

Main chip: ESP32-S3
Compatible module: ESP32-S3-WROOM-1
Compatible module: ESP32-S3-WROOM-1U
Compatible module: ESP32-S3-WROOM-2

Revisions

v1.0 (initial release) — Initial release. Addressable RGB LED driven by GPIO48; guide notes that connection via the ESP32-S3 USB Port was not fully implemented in software at that time. · ESP32-S3-DevKitC-1 v1.0 User Guide · docs/en/esp32-s3-devkitc-1/user_guide_v1.0.rst#L280-L285
v1.1 — Addressable RGB LED moved from GPIO48 to GPIO38. Official guide states both the initial and v1.1 versions are on the market; the RGB LED GPIO is the documented main difference. · ESP32-S3-DevKitC-1 v1.1 User Guide · docs/en/esp32-s3-devkitc-1/user_guide_v1.1.rst#L249-L258

Order codes

SKU	Flash	PSRAM	Source
ESP32-S3-DevKitC-1-N16R8	16 MB	8 MB
ESP32-S3-DevKitC-1-N32R16V	32 MB	16 MB
ESP32-S3-DevKitC-1-N8	8 MB	—	EOL
ESP32-S3-DevKitC-1-N8R2	8 MB	2 MB	EOL
ESP32-S3-DevKitC-1-N8R8	8 MB	8 MB
ESP32-S3-DevKitC-1U-N16R8	16 MB	8 MB
ESP32-S3-DevKitC-1U-N8	8 MB	—	EOL
ESP32-S3-DevKitC-1U-N8R2	8 MB	2 MB	EOL
ESP32-S3-DevKitC-1U-N8R8	8 MB	8 MB

Pinout

power · ground · GPIO / signal · onboard LED

J1 (22 pins)

Contact numbering matches the official board schematic (PDF). The v1.0 and v1.1 guide header tables are line-identical for J1. Type legend: P = power supply, I = input, O = output, T = high impedance, G = ground. · Source: ESP32-S3-DevKitC-1 v1.1 User Guide · docs/en/esp32-s3-devkitc-1/user_guide_v1.1.rst#L164-L248

No.	Name	Type	GPIO	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	4	RTC_GPIO4, GPIO4, TOUCH4, ADC1_CH3
5	5	I/O/T	5	RTC_GPIO5, GPIO5, TOUCH5, ADC1_CH4
6	6	I/O/T	6	RTC_GPIO6, GPIO6, TOUCH6, ADC1_CH5
7	7	I/O/T	7	RTC_GPIO7, GPIO7, TOUCH7, ADC1_CH6
8	15	I/O/T	15	RTC_GPIO15, GPIO15, U0RTS, ADC2_CH4, XTAL_32K_P
9	16	I/O/T	16	RTC_GPIO16, GPIO16, U0CTS, ADC2_CH5, XTAL_32K_N
10	17	I/O/T	17	RTC_GPIO17, GPIO17, U1TXD, ADC2_CH6
11	18	I/O/T	18	RTC_GPIO18, GPIO18, U1RXD, ADC2_CH7, CLK_OUT3
12	8	I/O/T	8	RTC_GPIO8, GPIO8, TOUCH8, ADC1_CH7, SUBSPICS1
13	3	I/O/T	3	RTC_GPIO3, GPIO3, TOUCH3, ADC1_CH2
14	46	I/O/T	46	GPIO46
15	9	I/O/T	9	RTC_GPIO9, GPIO9, TOUCH9, ADC1_CH8, FSPIHD, SUBSPIHD
16	10	I/O/T	10	RTC_GPIO10, GPIO10, TOUCH10, ADC1_CH9, FSPICS0, FSPIIO4, SUBSPICS0
17	11	I/O/T	11	RTC_GPIO11, GPIO11, TOUCH11, ADC2_CH0, FSPID, FSPIIO5, SUBSPID
18	12	I/O/T	12	RTC_GPIO12, GPIO12, TOUCH12, ADC2_CH1, FSPICLK, FSPIIO6, SUBSPICLK
19	13	I/O/T	13	RTC_GPIO13, GPIO13, TOUCH13, ADC2_CH2, FSPIQ, FSPIIO7, SUBSPIQ
20	14	I/O/T	14	RTC_GPIO14, GPIO14, TOUCH14, ADC2_CH3, FSPIWP, FSPIDQS, SUBSPIWP
21	5V	P		5 V power supply
22	G	G		Ground

J3 (22 pins)

Contact numbering matches the official board schematic (PDF). The v1.0 and v1.1 header tables differ only in the RGB LED annotation: the v1.0 table annotates contact 16 (GPIO48), the v1.1 table annotates contact 10 (GPIO38); that revision-scoped fact is modelled by board claims onboard_rgb_led.gpio instead of contact text. GPIO35-37 external availability depends on the assembled module (see module claims gpio.occupied_by_internal_storage). · Source: ESP32-S3-DevKitC-1 v1.1 User Guide · docs/en/esp32-s3-devkitc-1/user_guide_v1.1.rst#L164-L248

No.	Name	Type	GPIO	Function
1	G	G		Ground
2	TX	I/O/T	43	U0TXD, GPIO43, CLK_OUT1
3	RX	I/O/T	44	U0RXD, GPIO44, CLK_OUT2
4	1	I/O/T	1	RTC_GPIO1, GPIO1, TOUCH1, ADC1_CH0
5	2	I/O/T	2	RTC_GPIO2, GPIO2, TOUCH2, ADC1_CH1
6	42	I/O/T	42	MTMS, GPIO42
7	41	I/O/T	41	MTDI, GPIO41, CLK_OUT1
8	40	I/O/T	40	MTDO, GPIO40, CLK_OUT2
9	39	I/O/T	39	MTCK, GPIO39, CLK_OUT3, SUBSPICS1
10	38	I/O/T	38	GPIO38, FSPIWP, SUBSPIWP
11	37	I/O/T	37	SPIDQS, GPIO37, FSPIQ, SUBSPIQ
12	36	I/O/T	36	SPIIO7, GPIO36, FSPICLK, SUBSPICLK
13	35	I/O/T	35	SPIIO6, GPIO35, FSPID, SUBSPID
14	0	I/O/T	0	RTC_GPIO0, GPIO0
15	45	I/O/T	45	GPIO45
16	48	I/O/T	48	GPIO48, SPICLK_N, SUBSPICLK_N_DIFF
17	47	I/O/T	47	GPIO47, SPICLK_P, SUBSPICLK_P_DIFF
18	21	I/O/T	21	RTC_GPIO21, GPIO21
19	20	I/O/T	20	RTC_GPIO20, GPIO20, U1CTS, ADC2_CH9, CLK_OUT1, USB_D+
20	19	I/O/T	19	RTC_GPIO19, GPIO19, U1RTS, ADC2_CH8, CLK_OUT2, USB_D-
21	G	G		Ground
22	G	G		Ground

The ESP32-S3-DevKitC-1 is an entry-level development board from Espressif, assembled with an ESP32-S3-WROOM-1, -1U or -2 module. This page renders the MCUID data record for the board: identity, both board revisions, ordering variants, and the complete J1/J3 header mapping, each tied to a fixed official source.

Identify your board

Three separate identities, three separate checks — the full identification guide walks through each one:

Board model — this page covers the ESP32-S3-DevKitC-1 and -1U. Search on this site accepts the part number or aliases (e.g. DevKitC-1-N8R8); the boards directory lists every qualified board.
Module — read the silkscreen on the metal shield: WROOM-1 (PCB antenna), WROOM-1U (external antenna connector), or WROOM-2. The suffix after the family name encodes flash/PSRAM sizes; the SKU table sits under ordering variants.
PCB revision — v1.0 and v1.1 are both on the market and differ in the RGB LED GPIO (48 vs 38). Confirm from the board silkscreen or seller listing against the per-revision user guides; where the LED lights up is only a clue, never revision proof. Until the revision is confirmed, the pinout below stays unselected — no revision is picked by default.

Start developing

Bring-up — the first-flash guide covers ports, cables and the first blink step by step.
On-board RGB LED — the [blink lab](/labs/esp32-s3/blink-led/) compiles a sketch for both revisions; compiled, not hardware-tested by MCUID.
Chip capabilities and limits — the ESP32-S3 chip page separates what the chip provides from what this board wires up.

Common questions this site answers

Also known as: ESP32-S3-DevKitC, esp32-s3-devkitc-1

Ordering variants at a glance

Current SKUs: ESP32-S3-DevKitC-1-N32R16V (WROOM-2, 32 MB flash + 16 MB PSRAM), ESP32-S3-DevKitC-1-N16R8, ESP32-S3-DevKitC-1-N8R8 (WROOM-1), ESP32-S3-DevKitC-1U-N16R8, ESP32-S3-DevKitC-1U-N8R8 (WROOM-1U, external antenna connector). Four earlier SKUs — ESP32-S3-DevKitC-1-N8, ESP32-S3-DevKitC-1-N8R2, ESP32-S3-DevKitC-1U-N8, ESP32-S3-DevKitC-1U-N8R2 — are end-of-life in the official ordering info. The full variant table sits under ordering variants.