Espressif ESP32-S2 User Manual

Chapter 1. Get Started
J3
No. Name Type Function
1 G G Ground
2 RST I CHIP_PU
3 46 I GPIO46
4 45 I/O/T GPIO45
5 RX I/O/T U0RXD, GPIO44, CLK_OUT2
6 TX I/O/T U0TXD, GPIO43, CLK_OUT1
7 42 I/O/T MTMS, GPIO42
8 41 I/O/T MTDI, GPIO41, CLK_OUT1
9 40 I/O/T MTDO, GPIO40, CLK_OUT2
10 39 I/O/T MTCK, GPIO39, CLK_OUT3
11 38 I/O/T GPIO38, FSPIWP
12 37 I/O/T SPIDQS, GPIO37, FSPIQ
13 36 I/O/T SPIIO7, GPIO36, FSPICLK
14 35 I/O/T SPIIO6, GPIO35, FSPID
15 34 I/O/T SPIIO5, GPIO34, FSPICS0
16 33 I/O/T SPIIO4, GPIO33, FSPIHD
17 26 I/O/T SPICS1, GPIO26
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 18 I/O/T RTC_GPIO18, GPIO18, U1RXD, ADC2_CH7, DAC_2, CLK_OUT3, RGB LED
Fig. 9: ESP32-S2-DevKitM-1(U) Pin Layout (click to enlarge)
Pin Layout
Espressif Systems 14
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Release v4.4

Espressif ESP32-S2 Specifications

General

Brand	Espressif
Model	ESP32-S2
Category	Single board computers
Language	English