Table of Contents
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1 Overview
Name
No.
GND
1, 2, 27, 38
~
3V3
3
I36
4
I37
5
I38
6
I39
7
EN
8
I34
9
I35
10
IO32
11
IO33
12
IO25
13
IO26
14
IO27
15
IO14
16
IO12
17
IO13
18
IO15
19
IO2
20
IO0
21
IO4
22
NC
23
NC
24
IO9
25
IO10
26
NC
28
IO5
29
IO18
30
IO23
31
IO19
32
Espressif Systems
Table 12. Pin Definitions
Type
Function
55
P
Ground
P
Power supply
I
GPIO36, ADC1_CH0, RTC_GPIO0
I
GPIO37, ADC1_CH1, RTC_GPIO1
I
GPIO38, ADC1_CH2, RTC_GPIO2
I
GPIO39, ADC1_CH3, RTC_GPIO3
High: enables the chip
I
Low: the chip powers off
Note: do not leave the pin floating
I
GPIO34, ADC1_CH6, RTC_GPIO4
I
GPIO35, ADC1_CH7, RTC_GPIO5
I/O
GPIO32, XTAL_32K_P (32.768 kHz crystal oscillator input), ADC1_CH4,
TOUCH9, RTC_GPIO9
I/O
GPIO33, XTAL_32K_N (32.768 kHz crystal oscillator output), ADC1_CH5,
TOUCH8, RTC_GPIO8
I/O
GPIO25, DAC_1, ADC2_CH8, RTC_GPIO6, EMAC_RXD0
I/O
GPIO26, DAC_2, ADC2_CH9, RTC_GPIO7, EMAC_RXD1
I/O
GPIO27, ADC2_CH7, TOUCH7, RTC_GPIO17, EMAC_RX_DV
I/O
GPIO14, ADC2_CH6, TOUCH6, RTC_GPIO16, MTMS, HSPICLK,
HS2_CLK, SD_CLK, EMAC_TXD2
I/O
GPIO12,
HS2_DATA2, SD_DATA2, EMAC_TXD3
I/O
GPIO13,
HS2_DATA3, SD_DATA3, EMAC_RX_ER
I/O
GPIO15, ADC2_CH3, TOUCH3, RTC_GPIO13, MTDO, HSPICS0,
HS2_CMD, SD_CMD, EMAC_RXD3
I/O
GPIO2, ADC2_CH2, TOUCH2, RTC_GPIO12, HSPIWP, HS2_DATA0,
SD_DATA0
I/O
GPIO0,
EMAC_TX_CLK
I/O
GPIO4, ADC2_CH0, TOUCH0, RTC_GPIO10, HSPIHD, HS2_DATA1,
SD_DATA1, EMAC_TX_ER
-
No connect
-
No connect
I/O
GPIO9, HS1_DATA2, U1RXD, SD_DATA2
I/O
GPIO10, HS1_DATA3, U1TXD, SD_DATA3
-
No connect
I/O
GPIO5, HS1_DATA6, VSPICS0, EMAC_RX_CLK
I/O
GPIO18, HS1_DATA7, VSPICLK
I/O
GPIO23, HS1_STROBE, VSPID
I/O
GPIO19, VSPIQ, U0CTS, EMAC_TXD0
ADC2_CH5,
TOUCH5,
ADC2_CH4,
TOUCH4,
ADC2_CH1,
TOUCH1,
5
ESP32-MINI-1 User Manual (Preliminary v0.1)
RTC_GPIO15,
MTDI,
RTC_GPIO14,
MTCK, HSPID,
RTC_GPIO11,
CLK_OUT1,
Cont'd on next page
HSPIQ,
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