esp-dev-kits Choose target... Choose version... ESP32 Boards ESP32-DevKitC User Guide What You Need Overview Functional Description Power Supply Options Header Block Note on C15 Start Application Development Related Documents ESP32-DevKitC V2 Disclaimer and Copyright Notice ESP32-DevKitM-1 ESP32-PICO-KIT-1 ESP32-PICO-DevKitM-2 ESP32-LCDKit ESP32-Ethernet-Kit EOL (End of Life) Boards Resources and Legal Notices Related Documentation and Resources Disclaimer and Copyright Notice esp-dev-kits ESP32-DevKitC ESP32-DevKitC V4 ESP32-DevKitC V2 Download PDF ESP32-DevKitC V2 [中文] New version available: ESP32-DevKitC V4 This guide shows how to start using the ESP32-DevKitC V2 development board. What You Need ESP32-DevKitC V2 board USB 2.0 cable (Standard-A to Micro-B) Computer running Windows, Linux, or macOS You can skip the introduction sections and go directly to Section Start Application Development. Overview ESP32-DevKitC V2 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. Functional Description The following figure and the table below describe the key components, interfaces and controls of the ESP32-DevKitC V2 board. ESP32-DevKitC V2 board layout Key Component Description ESP32-WROOM-32 Standard module with ESP32 at its core. For more information, see ESP32-WROOM-32 Datasheet EN Reset button. Boot Download button. Holding down Boot and then pressing EN initiates Firmware Download mode for downloading firmware through the serial port. Micro USB Port USB interface. Power supply for the board as well as the communication interface between a computer and ESP32-WROOM-32. 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. Power Supply Options There are three mutually exclusive ways to provide power to the board: Micro USB port, default power supply 5V and GND header pins 3V3 and 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. Start Application Development Before powering up your ESP32-DevKitC V2, please make sure that the board is in good condition with no obvious signs of damage. After that, proceed to ESP-IDF Get Started, which will quickly help you set up the development environment then flash an application example onto your board. Related Documents ESP32-DevKitC schematics (PDF) ESP32 Datasheet (PDF) ESP32-WROOM-32 Datasheet (PDF) Disclaimer and Copyright Notice See Disclaimer and Copyright Notice. Next Previous Suggestion on this document? Provide feedback Help improve this document? Edit on GitHub Need more information? Check ESP forum Sales Questions Technical Inquiries © Copyright 2016 - 2026, Espressif Systems (Shanghai) CO., LTD Built with Sphinx using a theme based on Read the Docs Sphinx Theme. esp-dev-kits Choose target... Choose version... ESP32 Boards ESP32-DevKitC User Guide What You Need Overview Functional Description Power Supply Options Header Block J2 J3 Pin Layout Note on C15 Start Application Development Related Documents ESP32-DevKitC V2 Disclaimer and Copyright Notice ESP32-DevKitM-1 ESP32-PICO-KIT-1 ESP32-PICO-DevKitM-2 ESP32-LCDKit ESP32-Ethernet-Kit EOL (End of Life) Boards Resources and Legal Notices Related Documentation and Resources Disclaimer and Copyright Notice esp-dev-kits ESP32-DevKitC ESP32-DevKitC V4 Download PDF ESP32-DevKitC V4 [中文] The older version: ESP32-DevKitC V2 This guide shows how to start using the ESP32-DevKitC V4 development board. What You Need ESP32-DevKitC V4 board USB 2.0 cable (Standard-A to Micro-B) 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 ESP32-WROOM-32E ESP32-WROOM-32UE ESP32-WROVER-E ESP32-WROVER-IE ESP32-WROOM-32D ESP32-WROOM-32U ESP32-WROOM-DA (End of Life) ESP32-SOLO-1 ESP32-WROOM-32 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-32E module soldered The key components of the board are described, starting from the 5V Power On LED, in a clockwise direction. No. Key Component Description 1 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. 2 I/O Connector 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. 3 ESP32-WROOM-32E A module with ESP32 at its core. For more information, see ESP32-WROOM-32E Datasheet. 4 USB-to-UART Bridge Single USB-to-UART bridge chip, providing transfer rates up to 3 Mbps. 5 Boot Button Download button. Holding down Boot and then pressing EN initiates Firmware Download mode for downloading firmware through the serial port. 6 USB-to-UART Port A Micro-USB port used for power supply to the board, as well as for communication between a computer and the ESP32-WROOM-32E module. 7 EN Button Reset button. Power Supply Options There are three mutually exclusive ways to provide power to the board: Micro USB port, default power supply 5V and GND header pins 3V3 and 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-32E module soldered. J2 No. Name Type [1] Function 1 3V3 P 3.3 V power supply 2 EN I CHIP_PU, Reset 3 VP I GPIO36, ADC1_CH0, S_VP 4 VN I GPIO39, ADC1_CH3, S_VN 5 IO34 I GPIO34, ADC1_CH6, VDET_1 6 IO35 I GPIO35, ADC1_CH7, VDET_2 7 IO32 I/O GPIO32, ADC1_CH4, TOUCH_CH9, XTAL_32K_P 8 IO33 I/O GPIO33, ADC1_CH5, TOUCH_CH8, XTAL_32K_N 9 IO25 I/O GPIO25, ADC2_CH8, DAC_1 10 IO26 I/O GPIO26, ADC2_CH9, DAC_2 11 IO27 I/O GPIO27, ADC2_CH7, TOUCH_CH7 12 IO14 I/O GPIO14, ADC2_CH6, TOUCH_CH6, MTMS 13 IO12 I/O GPIO12, ADC2_CH5, TOUCH_CH5, MTDI 14 GND G Ground 15 IO13 I/O GPIO13, ADC2_CH4, TOUCH_CH4, MTCK 16 D2 I/O GPIO9, D2 [2] 17 D3 I/O GPIO10, D3 [2] 18 CMD I/O GPIO11, CMD [2] 19 5V P 5 V power supply J3 No. Name Type [1] Function 1 GND G Ground 2 IO23 I/O GPIO23 3 IO22 I/O GPIO22 4 TX I/O GPIO1, U0TXD 5 RX I/O GPIO3, U0RXD 6 IO21 I/O GPIO21 7 GND G Ground 8 IO19 I/O GPIO19 9 IO18 I/O GPIO18 10 IO5 I/O GPIO5 11 IO17 I/O GPIO17 [3] 12 IO16 I/O GPIO16 [3] 13 IO4 I/O GPIO4, ADC2_CH0, TOUCH_CH0 14 IO0 I/O GPIO0, ADC2_CH1, TOUCH_CH1, Boot 15 IO2 I/O GPIO2, ADC2_CH2, TOUCH_CH2 16 IO15 I/O GPIO15, ADC2_CH3, TOUCH_CH3, MTDO 17 D1 I/O GPIO8, D1 [2] 18 D0 I/O GPIO7, D0 [2] 19 CLK I/O GPIO6, CLK [2] [1] (1,2) P: Power supply; I: Input; O: Output. [2] (1,2,3,4,5,6) 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. [3] (1,2) 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. 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 ESP-IDF Get Started, which will quickly help you set up the development environment then flash an application example onto your board. Related Documents ESP32 Datasheet (PDF) ESP32-DevKitC V4 Schematics (PDF) ESP32-DevKitC V4 PCB Layout (PDF) ESP32-DevKitC V4 Dimensions (PDF) ESP32-DevKitC V4 Dimensions source file (DXF) - You can view it with Autodesk Viewer online ESP Product Selector For further design documentation for the board, please contact us at sales@espressif.com. Disclaimer and Copyright Notice See Disclaimer and Copyright Notice. Next Previous Suggestion on this document? Provide feedback Help improve this document? Edit on GitHub Need more information? Check ESP forum Sales Questions Technical Inquiries © Copyright 2016 - 2026, Espressif Systems (Shanghai) CO., LTD Built with Sphinx using a theme based on Read the Docs Sphinx Theme. esp-dev-kits Choose target... Choose version... ESP32 Boards ESP32-DevKitC ESP32-DevKitM-1 ESP32-PICO-KIT-1 ESP32-PICO-DevKitM-2 ESP32-LCDKit ESP32-Ethernet-Kit EOL (End of Life) Boards Resources and Legal Notices Related Documentation and Resources Disclaimer and Copyright Notice Terms of Use for Development Board esp-dev-kits Disclaimer and Copyright Notice Download PDF Disclaimer and Copyright Notice [中文] Information in this document, including URL referenc