Chengdu Ebyte Electronic Technology Co.,Ltd.
ESP32-WROOM-32UE User Manual
Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd.
5
Name
Serial number
Type
Function
GND
1
P
Grounded
3V3
2
P
Powered by
EN
3
I
High level: chip enable;
low level: chip off;
Note: The EN pin cannot be left floating.
SENSOR_VP
4
I
GPIO36, ADC1_CH0, RTC_GPIO0
SENSOR_VN
5
I
GPIO39, ADC1_CH3, RTC_GPIO3
IO34
6
I
GPIO34, ADC1_CH6, RTC_GPIO4
IO35
7
I
GPIO35, ADC1_CH7, RTC_GPIO5
IO32
8
I/O
GPIO32, XTAL_32K_P (32.768 kHz
Crystal input
), ADC1_CH4,
TOUCH9,
RTC_GPIO9
IO33
9
I/O
GPIO33, XTAL_32K_N (32.768 kHz
Crystal output
), ADC1_CH5,
TOUCH8,
RTC_GPIO8
IO25
10
I/O
GPIO25, DAC_1, ADC2_CH8, RTC_GPIO6, EMAC_RXD0
IO26
11
I/O
GPIO26, DAC_2, ADC2_CH9, RTC_GPIO7, EMAC_RXD1
IO27
12
I/O
GPIO27, ADC2_CH7, TOUCH7, RTC_GPIO17, EMAC_RX_DV
IO14
13
I/O
GPIO14, ADC2_CH6, TOUCH6, RTC_GPIO16, MTMS, HSPICLK,
HS2_CLK, SD_CLK, EMAC_TXD2
IO12
14
I/O
GPIO12, ADC2_CH5, TOUCH5, RTC_GPIO15, MTDI, HSPIQ,
HS2_DATA2, SD_DATA2, EMAC_TXD3
GND
15
P
Grounded
IO13
16
I/O
GPIO13, ADC2_CH4, TOUCH4, RTC_GPIO14, MTCK, HSPID,
HS2_DATA3, SD_DATA3, EMAC_RX_ER
NC
17
-
See note 1 below the table
NC
18
-
See note 1 below the table
NC
19
-
See note 1 below the table
