乐鑫科技ESPRESSIF ESP32-DevKitM-1

Key Component

Description

On-board module

ESP32-MINI-1 module or ESP32-MINI-1U module. ESP32-MINI-1 comes with an on-board PCB antenna. ESP32-MINI-1U comes with an external antenna connector. The two modules both have a 4 MB flash in chip package.

5 V to 3.3 V LDO

Power regulator converts 5 V to 3.3 V.

Boot Button

Download button. Holding down Boot and then pressing Reset initiates Firmware Download mode for downloading firmware through the serial port.

Reset Button

Reset Button

Micro-USB Port

USB interface. Power supply for the board as well as the communication interface between a computer and the ESP32 chip.

USB-to-UART Bridge

Single USB-UART bridge chip provides transfer rates up to 3 Mbps.

3.3 V Power On LED

Turns on when the USB is connected to the board.

I/O Connector

All available GPIO pins (except for the SPI bus for flash) are broken out to the pin headers on the board. Users can program ESP32 chip to enable multiple functions.

主要组件

基本介绍

板载模组

ESP32-MINI-1 模组或 ESP32-MINI-1U 模组。ESP32-MINI-1 带有板载 PCB 天线；ESP32-MINI-1U 带有外部天线连接器。两款模组内置的芯片均叠封 4 MB flash。

5 V 转 3.3 V LDO

电源转换器，输入 5 V，输出 3.3 V

Boot 键

下载按键。按下 Boot 键的同时按一下 Reset 键进入“固件下载”模式，通过串口下载固件

Reset 键

复位按键

Micro-USB 接口

USB 接口，可用作开发板的供电电源或 PC 和 ESP32 芯片的通信接口

USB 至 UART 桥接器

单芯片 USB 至 UART 桥接器，可提供高达 3 Mbps 的传输速率

3.3 V 电源指示灯

开发板连接 USB 电源后，该指示灯亮起。

I/O 连接器

所有可用 GPIO 管脚（除 Flash 的 SPI 总线）均已引出至开发板的排针。用户可对 ESP32 芯片编程，开发多种功能

No.

Name

Type

Function

1

GND

P

Ground

2

3V3

P

3.3 V power supply

3

I36

I

GPIO36, ADC1_CH0, RTC_GPIO0

4

I37

I

GPIO37, ADC1_CH1, RTC_GPIO1

5

I38

I

GPIO38, ADC1_CH2, RTC_GPIO2

6

I39

I

GPIO39, ADC1_CH3, RTC_GPIO3

7

RST

I

Reset; High: enable; Low: powers off

8

I34

I

GPIO34, ADC1_CH6, RTC_GPIO4

9

I35

I

GPIO35, ADC1_CH7, RTC_GPIO5

10

IO32

I/O

GPIO32, XTAL_32K_P (32.768 kHz crystal oscillator input), ADC1_CH4, TOUCH9, RTC_GPIO9

11

IO33

I/O

GPIO33, XTAL_32K_N (32.768 kHz crystal oscillator output), ADC1_CH5, TOUCH8, RTC_GPIO8

12

IO25

I/O

GPIO25, DAC_1, ADC2_CH8, RTC_GPIO6, EMAC_RXD0

13

IO26

I/O

GPIO26, DAC_2, ADC2_CH9, RTC_GPIO7, EMAC_RXD1

14

IO27

I/O

GPIO27, ADC2_CH7, TOUCH7, RTC_GPIO17, EMAC_RX_DV

15

IO14

I/O

GPIO14, ADC2_CH6, TOUCH6, RTC_GPIO16, MTMS, HSPICLK, HS2_CLK, SD_CLK, EMAC_TXD2

16

5V

P

5 V power supply

17

IO12

I/O

GPIO12, ADC2_CH5, TOUCH5, RTC_GPIO15, MTDI, HSPIQ, HS2_DATA2, SD_DATA2, EMAC_TXD3

18

IO13

I/O

GPIO13, ADC2_CH4, TOUCH4, RTC_GPIO14, MTCK, HSPID, HS2_DATA3, SD_DATA3, EMAC_RX_ER

19

IO15

I/O

GPIO15, ADC2_CH3, TOUCH3, RTC_GPIO13, MTDO, HSPICS0, HS2_CMD, SD_CMD, EMAC_RXD3

20

IO2

I/O

GPIO2, ADC2_CH2, TOUCH2, RTC_GPIO12, HSPIWP, HS2_DATA0, SD_DATA0

21

IO0

I/O

GPIO0, ADC2_CH1, TOUCH1, RTC_GPIO11, CLK_OUT1, EMAC_TX_CLK

22

IO4

I/O

GPIO4, ADC2_CH0, TOUCH0, RTC_GPIO10, HSPIHD, HS2_DATA1, SD_DATA1, EMAC_TX_ER

23

IO9

I/O

GPIO9, HS1_DATA2, U1RXD, SD_DATA2

24

IO10

I/O

GPIO10, HS1_DATA3, U1TXD, SD_DATA3

25

IO5

I/O

GPIO5, HS1_DATA6, VSPICS0, EMAC_RX_CLK

26

IO18

I/O

GPIO18, HS1_DATA7, VSPICLK

27

IO23

I/O

GPIO23, HS1_STROBE, VSPID

28

IO19

I/O

GPIO19, VSPIQ, U0CTS, EMAC_TXD0

29

IO22

I/O

GPIO22, VSPIWP, U0RTS, EMAC_TXD1

30

IO21

I/O

GPIO21, VSPIHD, EMAC_TX_EN

31

TXD0

I/O

GPIO1, U0TXD, CLK_OUT3, EMAC_RXD2

32

RXD0

I/O

GPIO3, U0RXD, CLK_OUT2

编号

名称

类型

功能

1

GND

P

接地

2

3V3

P

3.3 V 电源

3

I36

I

GPIO36, ADC1_CH0, RTC_GPIO0

4

I37

I

GPIO37, ADC1_CH1, RTC_GPIO1

5

I38

I

GPIO38, ADC1_CH2, RTC_GPIO2

6

I39

I

GPIO39, ADC1_CH3, RTC_GPIO3

7

RST

I

复位；高电平：使能；低电平：关闭

8

I34

I

GPIO34, ADC1_CH6, RTC_GPIO4

9

I35

I

GPIO35, ADC1_CH7, RTC_GPIO5

10

IO32

I/O

GPIO32, XTAL_32K_P (32.768 kHz crystal oscillator input), ADC1_CH4, TOUCH9, RTC_GPIO9

11

IO33

I/O

GPIO33, XTAL_32K_N (32.768 kHz crystal oscillator output), ADC1_CH5, TOUCH8, RTC_GPIO8

12

IO25

I/O

GPIO25, DAC_1, ADC2_CH8, RTC_GPIO6, EMAC_RXD0

13

IO26

I/O

GPIO26, DAC_2, ADC2_CH9, RTC_GPIO7, EMAC_RXD1

14

IO27

I/O

GPIO27, ADC2_CH7, TOUCH7, RTC_GPIO17, EMAC_RX_DV

15

IO14

I/O

GPIO14, ADC2_CH6, TOUCH6, RTC_GPIO16, MTMS, HSPICLK, HS2_CLK, SD_CLK, EMAC_TXD2

16

5V

P

5 V 电源

17

IO12

I/O

GPIO12, ADC2_CH5, TOUCH5, RTC_GPIO15, MTDI, HSPIQ, HS2_DATA2, SD_DATA2, EMAC_TXD3

18

IO13

I/O

GPIO13, ADC2_CH4, TOUCH4, RTC_GPIO14, MTCK, HSPID, HS2_DATA3, SD_DATA3, EMAC_RX_ER

19

IO15

I/O

GPIO15, ADC2_CH3, TOUCH3, RTC_GPIO13, MTDO, HSPICS0, HS2_CMD, SD_CMD, EMAC_RXD3

20

IO2

I/O

GPIO2, ADC2_CH2, TOUCH2, RTC_GPIO12, HSPIWP, HS2_DATA0, SD_DATA0

21

IO0

I/O

GPIO0, ADC2_CH1, TOUCH1, RTC_GPIO11, CLK_OUT1, EMAC_TX_CLK

22

IO4

I/O

GPIO4, ADC2_CH0, TOUCH0, RTC_GPIO10, HSPIHD, HS2_DATA1, SD_DATA1, EMAC_TX_ER

23

IO9

I/O

GPIO9, HS1_DATA2, U1RXD, SD_DATA2

24

IO10

I/O

GPIO10, HS1_DATA3, U1TXD, SD_DATA3

25

IO5

I/O

GPIO5, HS1_DATA6, VSPICS0, EMAC_RX_CLK

26

IO18

I/O

GPIO18, HS1_DATA7, VSPICLK

27

IO23

I/O

GPIO23, HS1_STROBE, VSPID

28

IO19

I/O

GPIO19, VSPIQ, U0CTS, EMAC_TXD0

29

IO22

I/O

GPIO22, VSPIWP, U0RTS, EMAC_TXD1

30

IO21

I/O

GPIO21, VSPIHD, EMAC_TX_EN

31

TXD0

I/O

GPIO1, U0TXD, CLK_OUT3, EMAC_RXD2

32

RXD0

I/O

GPIO3, U0RXD, CLK_OUT2