Espressif ESP32-S2 User Manual

Chapter 1. Get Started
J2
No. Name Type
1
Function
1 3V3 P 3.3 V power supply
2 IO0 I/O GPIO0, Boot
3 IO1 I/O GPIO1, ADC1_CH0, TOUCH_CH1
4 IO2 I/O GPIO2, ADC1_CH1, TOUCH_CH2
5 IO3 I/O GPIO3, ADC1_CH2, TOUCH_CH3
6 IO4 I/O GPIO4, ADC1_CH3, TOUCH_CH4
7 IO5 I/O GPIO5, ADC1_CH4, TOUCH_CH5
8 IO6 I/O GPIO6, ADC1_CH5, TOUCH_CH6
9 IO7 I/O GPIO7, ADC1_CH6, TOUCH_CH7
10 IO8 I/O GPIO8, ADC1_CH7, TOUCH_CH8
11 IO9 I/O GPIO9, ADC1_CH8, TOUCH_CH9
12 IO10 I/O GPIO10, ADC1_CH9, TOUCH_CH10
13 IO11 I/O GPIO11, ADC2_CH0, TOUCH_CH11
14 IO12 I/O GPIO12, ADC2_CH1, TOUCH_CH12
15 IO13 I/O GPIO13, ADC2_CH2, TOUCH_CH13
16 IO14 I/O GPIO14, ADC2_CH3, TOUCH_CH14
17 IO15 I/O GPIO15, ADC2_CH4, XTAL_32K_P
18 IO16 I/O GPIO16, ADC2_CH5, XTAL_32K_N
19 IO17 I/O GPIO17, ADC2_CH6, DAC_1
20 5V0 P 5 V power supply
21 GND G Ground
J3
No. Name Type Function
1 GND G Ground
2 RST I CHIP_PU, Reset
3 IO46 I GPIO46
4 IO45 I/O GPIO45
5 IO44 I/O GPIO44, U0RXD
6 IO43 I/O GPIO43, U0TXD
7 IO42 I/O GPIO42, MTMS
8 IO41 I/O GPIO41, MTDI
9 IO40 I/O GPIO40, MTDO
10 IO39 I/O GPIO39, MTCK
11 IO38 I/O GPIO38
12 IO37 I/O GPIO37
13 IO36 I/O GPIO36
14 IO35 I/O GPIO35
16 IO34 I/O GPIO34
17 IO33 I/O GPIO33
17 IO26 I/O GPIO26
18 IO21 I/O GPIO21
19 IO20 I/O GPIO20, ADC2_CH9, USB_D+
20 IO19 I/O GPIO19, ADC2_CH8, USB_D-
21 IO18 I/O GPIO18, ADC2_CH7, DAC_2, RGB LED
Pin Layout
Hardware Revision Details
This is the first revision of this board released.
P: Power supply; I: Input; O: Output; T: High impedance.
Espressif Systems 8
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Release v4.4

Espressif ESP32-S2 Specifications

General

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