BoardEspressif

ESP32-S3-DevKitM-1

Official Espressif ESP32-S3-DevKitM-1 board record (end-of-life): ESP32-S3-MINI-1/-1U module (S3FN8, 8 MB flash in package), dual 22-pin headers (44 contacts), Micro-USB bridge plus the native USB port (guide names it OTG; the chip runs USB Serial/JTAG or OTG over the shared PHY), RGB LED on GPIO48, and the recommended replacement path.

Assembly & compatibility

Main chip: ESP32-S3
Compatible module: ESP32-S3-MINI-1

Revisions

V1 (schematic 2021-03-10) — Single published revision; schematic SCH_ESP32-S3-DEVKITM-1_V1_20210310A defines the pin numbering. · ESP32-S3-DevKitM-1 User Guide (board is EOL; guide still published) · docs/en/esp32-s3-devkitm-1/user_guide.rst#L163-L165

Pinout

power · ground · GPIO / signal · onboard LED

J1 (left 1x22 header) (22 pins)

Transcribed from the guide's J1 table (22 data rows L167-L188); numbering matches schematic V1 20210310A. · Source: ESP32-S3-DevKitM-1 User Guide (board is EOL; guide still published) · docs/en/esp32-s3-devkitm-1/user_guide.rst#L169-L194

No.	Name	Type	GPIO	Function
1	3V3	P		3.3 V power supply
2	0	I/O/T	0	RTC_GPIO0, GPIO0
3	1	I/O/T	1	RTC_GPIO1, GPIO1, TOUCH1, ADC1_CH0
4	2	I/O/T	2	RTC_GPIO2, GPIO2, TOUCH2, ADC1_CH1
5	3	I/O/T	3	RTC_GPIO3, GPIO3, TOUCH3, ADC1_CH2
6	4	I/O/T	4	RTC_GPIO4, GPIO4, TOUCH4, ADC1_CH3
7	5	I/O/T	5	RTC_GPIO5, GPIO5, TOUCH5, ADC1_CH4
8	6	I/O/T	6	RTC_GPIO6, GPIO6, TOUCH6, ADC1_CH5
9	7	I/O/T	7	RTC_GPIO7, GPIO7, TOUCH7, ADC1_CH6
10	8	I/O/T	8	RTC_GPIO8, GPIO8, TOUCH8, ADC1_CH7, SUBSPICS1
11	9	I/O/T	9	RTC_GPIO9, GPIO9, TOUCH9, ADC1_CH8, FSPIHD, SUBSPIHD
12	10	I/O/T	10	RTC_GPIO10, GPIO10, TOUCH10, ADC1_CH9, FSPICS0, FSPIIO4, SUBSPICS0
13	11	I/O/T	11	RTC_GPIO11, GPIO11, TOUCH11, ADC2_CH0, FSPID, FSPIIO5, SUBSPID
14	12	I/O/T	12	RTC_GPIO12, GPIO12, TOUCH12, ADC2_CH1, FSPICLK, FSPIIO6, SUBSPICLK
15	13	I/O/T	13	RTC_GPIO13, GPIO13, TOUCH13, ADC2_CH2, FSPIQ, FSPIIO7, SUBSPIQ
16	14	I/O/T	14	RTC_GPIO14, GPIO14, TOUCH14, ADC2_CH3, FSPIWP, FSPIDQS, SUBSPIWP
17	15	I/O/T	15	RTC_GPIO15, GPIO15, U0RTS, ADC2_CH4, XTAL_32K_P
18	16	I/O/T	16	RTC_GPIO16, GPIO16, U0CTS, ADC2_CH5, XTAL_32K_N
19	17	I/O/T	17	RTC_GPIO17, GPIO17, U1TXD, ADC2_CH6
20	18	I/O/T	18	RTC_GPIO18, GPIO18, U1RXD, ADC2_CH7, CLK_OUT3
21	5V	P		5 V power supply
22	G	G		Ground

J3 (right 1x22 header) (22 pins)

Transcribed from the guide's J3 table (22 data rows L198-L219); numbering matches schematic V1 20210310A. · Source: ESP32-S3-DevKitM-1 User Guide (board is EOL; guide still published) · docs/en/esp32-s3-devkitm-1/user_guide.rst#L200-L225

No.	Name	Type	GPIO	Function
1	G	G		Ground
2	RST	I		EN
3	46	I/O/T	46	GPIO46
4	45	I/O/T	45	GPIO45
5	RX	I/O/T	44	U0RXD, GPIO44, CLK_OUT2
6	TX	I/O/T	43	U0TXD, GPIO43, CLK_OUT1
7	42	I/O/T	42	MTMS, GPIO42
8	41	I/O/T	41	MTDI, GPIO41, CLK_OUT1
9	40	I/O/T	40	MTDO, GPIO40, CLK_OUT2
10	39	I/O/T	39	MTCK, GPIO39, CLK_OUT3, SUBSPICS1
11	38	I/O/T	38	GPIO38, FSPIWP, SUBSPIWP
12	37	I/O/T	37	SPIDQS, GPIO37, FSPIQ, SUBSPIQ
13	36	I/O/T	36	SPIIO7, GPIO36, FSPICLK, SUBSPICLK
14	35	I/O/T	35	SPIIO6, GPIO35, FSPID, SUBSPID
15	34	I/O/T	34	SPIIO5, GPIO34, FSPICS0, SUBSPICS0
16	33	I/O/T	33	SPIIO4, GPIO33, FSPIHD, SUBSPIHD
17	26	I/O/T	26	SPICS1, GPIO26
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	48	I/O/T	48	SPICLK_N, GPIO48, SUBSPICLK_N_DIFF; drives the on-board RGB LED
22	47	I/O/T	47	SPICLK_P, GPIO47, SUBSPICLK_P_DIFF

The ESP32-S3-DevKitM-1 is Espressif's end-of-life entry-level ESP32-S3 board, assembled with an ESP32-S3-MINI-1 or ESP32-S3-MINI-1U module (ESP32-S3FN8, 8 MB flash inside the chip package). This page renders the MCUID data record: the EOL status and replacement path, the dual USB ports, and the complete J1/J3 header mapping (44 contacts), each tied to a fixed official source.

Identify your board

Board model — this page covers the official ESP32-S3-DevKitM-1 (schematic V1, dated 2021-03-10). One published revision, no per-revision pinout differences.
Module — MINI-1 (PCB antenna) or MINI-1U (external antenna connector); both carry 8 MB flash integrated inside the chip package.

End-of-life — and the official replacement

The board itself is discontinued; Espressif's EOL notice recommends the ESP32-S3-DevKitC-1-N8R8 or -1U-N8R8 (functionally similar) as the replacement — see the ESP32-S3-DevKitC-1 record. Two facts survive the EOL:

The ESP32-S3-MINI-1/-1U module is not EOL — the module supply continues independently of this board.
The user guide stays published, so the pin tables below remain authoritative for boards already on desks.

Two USB ports — bridge and native USB

USB-to-UART Port (Micro-USB) — power, flashing, and serial through the on-board bridge (up to 3 Mbps). This was the default port.
ESP32-S3 USB Port — power, flashing, and JTAG debugging. The guide names this physical port a full-speed USB OTG interface (USB 1.1 compliant); at the chip level the ESP32-S3 actually integrates two controllers — USB OTG and USB Serial/JTAG — sharing the GPIO19/20 internal PHY, typically defaulting to USB Serial/JTAG, with one controller active at a time. "OTG" in the guide names the port, not an exclusion of the Serial/JTAG controller.

On-board RGB LED — GPIO48

An addressable RGB LED driven by GPIO48 (J3 contact 21).

USB D± on the header

The native-USB data lines are broken out: GPIO19 = USB_D- and GPIO20 = USB_D+ sit on J3 contacts 20/19, so the native USB port can be rewired to a custom connector.

Boot mode and power

Hold BOOT, then press RST, to enter Firmware Download mode. Power regulation is a 5 V→3.3 V LDO; the board takes 5 V from the Micro-USB port or the 5V pin.

Common questions this site answers

C6-DevKitM-1 or DevKitC-1 — which one? — the DevKitM vs DevKitC trade-offs, in the current-generation C6 line.

Also known as: esp32-s3-devkitm-1, s3 devkitm-1