Espressif ESP32-DevKitC V4 Bedienungsanleitung

ESP32-DevKitC V4 Getting Started Guide 
 
This guide shows how to start using the ESP32-DevKitC V4 development board. 
What You Need 
•ESP32-DevKitC V4 board 
•USB A / micro USB B cable 
•Computer running Windows, Linux, or macOS 
You can skip the introduction sections and go directly to Section Start Application 
Development. 
Overview 
ESP32-DevKitC V4 is a small-sized ESP32-based development board produced 
by Espressif. Most of the I/O pins are broken out to the pin headers on both sides for 
easy interfacing. Developers can either connect peripherals with jumper wires or mount 
ESP32-DevKitC V4 on a breadboard. 
To cover a wide range of user requirements, the following versions of ESP32-DevKitC 
V4 are available: 
•different ESP32 modules 
oESP32-WROOM-DA 
oESP32-WROOM-32E 
oESP32-WROOM-32UE 
oESP32-WROOM-32D 
oESP32-WROOM-32U 
oESP32-SOLO-1 
oESP32-WROVER-E 
oESP32-WROVER-IE 
•male or female pin headers. 

For details please refer to ESP Product Selector.

Functional Description

The following figure and the table below describe the key components, interfaces and

controls of the ESP32-DevKitC V4 board.

ESP32-DevKitC V4 with ESP32-WROOM-32 module soldered

Key Component

Description

ESP32-WROOM-

A module with ESP32 at its core. For more information, see ESP32-

WROOM-32 Datasheet.

Reset button.

Boot

Download button. Holding down Boot and then pressing EN initiates

Firmware Download mode for downloading firmware through the serial

port.

USB-to-UART

Bridge

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

Key Component

Description

Micro USB Port

USB interface. Power supply for the board as well as the communication

interface between a computer and the ESP32-WROOM-32 module.

5V Power On

LED

Turns on when the USB or an external 5V power supply is connected to

the board. For details see the schematics in Related Documents.

I/O

Most of the pins on the ESP module are broken out to the pin headers on

the board. You can program ESP32 to enable multiple functions such as

PWM, ADC, DAC, I2C, I2S, SPI, etc.

Note

The pins D0, D1, D2, D3, CMD and CLK are used internally for communication between

ESP32 and SPI flash memory. They are grouped on both sides near the USB connector.

Avoid using these pins, as it may disrupt access to the SPI flash memory / SPI RAM.

Note

The pins GPIO16 and GPIO17 are available for use only on the boards with the modules

ESP32-WROOM and ESP32-SOLO-1. The boards with ESP32-WROVER modules have

the pins reserved for internal use.

Power Supply Options

There are three mutually exclusive ways to provide power to the board:

•Micro USB port, default power supply

•5V / GND header pins

•3V3 / GND header pins

Warning

The power supply must be provided using one and only one of the options above,

otherwise the board and/or the power supply source can be damaged.

Header Block

The two tables below provide the Name and Function of I/O header pins on both sides

of the board, as shown in ESP32-DevKitC V4 with ESP32-WROOM-32 module soldered.

The numbering and names are the same as in the ESP32-DevKitC V4 schematics (PDF).

No.

Name

Type

Function

3V3

3.3 V power supply

CHIP_PU, Reset

IO36

GPIO36, ADC1_CH0, S_VP

IO39

GPIO39, ADC1_CH3, S_VN

IO34

GPIO34, ADC1_CH6, VDET_1

IO35

GPIO35, ADC1_CH7, VDET_2

IO32

I/O

GPIO32, ADC1_CH4, TOUCH_CH9, XTAL_32K_P

IO33

I/O

GPIO33, ADC1_CH5, TOUCH_CH8, XTAL_32K_N

IO25

I/O

GPIO25, ADC1_CH8, DAC_1

IO26

I/O

GPIO26, ADC2_CH9, DAC_2

IO27

I/O

GPIO27, ADC2_CH7, TOUCH_CH7

IO14

I/O

GPIO14, ADC2_CH6, TOUCH_CH6, MTMS

IO12

I/O

GPIO12, ADC2_CH5, TOUCH_CH5, MTDI

GND

Ground

IO13

I/O

GPIO13, ADC2_CH4, TOUCH_CH4, MTCK

IO9

I/O

GPIO9, D2

IO10

I/O

GPIO10, D3

IO11

I/O

GPIO11, CMD

5V0

5 V power supply

No.

Name

Type

Function

GND

Ground

IO23

I/O

GPIO23

IO22

I/O

GPIO22

IO1

I/O

GPIO1, U0TXD

IO3

I/O

GPIO3, U0RXD

IO21

I/O

GPIO21

GND

Ground

IO19

I/O

GPIO19

IO18

I/O

GPIO18

IO5

I/O

GPIO5

IO17

I/O

GPIO17

IO16

I/O

GPIO16

IO4

I/O

GPIO4, ADC2_CH0, TOUCH_CH0

IO0

I/O

GPIO0, ADC2_CH1, TOUCH_CH1, Boot

IO2

I/O

GPIO2, ADC2_CH2, TOUCH_CH2

IO15

I/O

GPIO15, ADC2_CH3, TOUCH_CH3, MTDO

IO8

I/O

GPIO8, D1

IO7

I/O

GPIO7, D0

IO6

I/O

GPIO6, SCK

P: Power supply; I: Input; O: Output.

Pin Layout

ESP32-DevKitC Pin Layout (click to enlarge)

Note on C15

The component C15 may cause the following issues on earlier ESP32-DevKitC V4

boards:

•The board may boot into Download mode

•If you output clock on GPIO0, C15 may impact the signal

In case these issues occur, please remove the component. The figure below shows the

location of C15 highlighted in yellow.

Location of C15 (yellow) on ESP32-DevKitC V4 board

Start Application Development

Before powering up your ESP32-DevKitC V4, please make sure that the board is in good

condition with no obvious signs of damage.

After that, proceed to Get Started, where Section Installation Step by Step will quickly

help you set up the development environment and then flash an example project onto

your board.

Board Dimensions

Dimensions of ESP32-DevKitC board with ESP32-WROOM-32 module soldered - back (click

to enlarge)

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