Espressif ESP32-S2 Programming Manual page 24

Chapter 1. Get Started
Header Block The two tables below provide the Name and Function of the pin headers on both sides of the board
(J1 and J3). The pin header names are shown in
ESP32-S2-DevKitM-1(U) Schematics
J1
No. Name
1 3V3
2 0
3 1
4 2
5 3
6 4
7 5
8 6
9 7
10 8
11 9
12 10
13 11
14 12
15 13
16 14
17 15
18 16
19 17
20 5V
21 G
P: Power supply; I: Input; O: Output; T: High impedance.
Espressif Systems
Fig. 8: ESP32-S2-DevKitM-1(U) (click to enlarge)
ESP32-S2-DevKitM-1 -
(PDF).
1
Type Function
P 3.3 V power supply
I/O/T RTC_GPIO0, GPIO0
I/O/T RTC_GPIO1, GPIO1, TOUCH1, ADC1_CH0
I/O/T RTC_GPIO2, GPIO2, TOUCH2, ADC1_CH1
I/O/T RTC_GPIO3, GPIO3, TOUCH3, ADC1_CH2
I/O/T RTC_GPIO4, GPIO4, TOUCH4, ADC1_CH3
I/O/T RTC_GPIO5, GPIO5, TOUCH5, ADC1_CH4
I/O/T RTC_GPIO6, GPIO6, TOUCH6, ADC1_CH5
I/O/T RTC_GPIO7, GPIO7, TOUCH7, ADC1_CH6
I/O/T RTC_GPIO8, GPIO8, TOUCH8, ADC1_CH7
I/O/T RTC_GPIO9, GPIO9, TOUCH9, ADC1_CH8, FSPIHD
I/O/T RTC_GPIO10, GPIO10, TOUCH10, ADC1_CH9, FSPICS0, FSPIIO4
I/O/T RTC_GPIO11, GPIO11, TOUCH11, ADC2_CH0, FSPID, FSPIIO5
I/O/T RTC_GPIO12, GPIO12, TOUCH12, ADC2_CH1, FSPICLK, FSPIIO6
I/O/T RTC_GPIO13, GPIO13, TOUCH13, ADC2_CH2, FSPIQ, FSPIIO7
I/O/T RTC_GPIO14, GPIO14, TOUCH14, ADC2_CH3, FSPIWP, FSPIDQS
I/O/T RTC_GPIO15, GPIO15, U0RTS, ADC2_CH4, XTAL_32K_P
I/O/T RTC_GPIO16, GPIO16, U0CTS, ADC2_CH5, XTAL_32K_N
I/O/T RTC_GPIO17, GPIO17, U1TXD, ADC2_CH6, DAC_1
P 5 V power supply
G Ground
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front. The numbering is the same as in the
13 Release v4.4