esp-dev-kits Choose target... Choose version... ESP32 Boards ESP32-DevKitC ESP32-DevKitM-1 ESP32-PICO-KIT-1 User Guide 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-PICO-KIT-1 Download PDF ESP32-PICO-KIT-1 [中文] The ESP32-PICO-KIT-1 is an ESP32-based development board produced by Espressif. ESP32-PICO-KIT-1 provides users with hardware for development of applications based on ESP32, making it easier for users to explore ESP32 functionalities. User Guide Overview Getting Started Contents and Packaging Hardware Reference Hardware Revision Details Related Documents 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 User Guide Overview Getting Started Description of Components Start Application Development Contents and Packaging Retail Orders Wholesale Orders Hardware Reference Block Diagram Power Supply Options Pin Descriptions Hardware Revision Details Related Documents Disclaimer and Copyright Notice 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-PICO-KIT-1 ESP32-PICO-KIT-1 Download PDF ESP32-PICO-KIT-1 [中文] Overview ESP32-PICO-KIT-1 is an ESP32-based development board produced by Espressif. The core of this board is ESP32-PICO-V3 - a System-in-Package (SiP) module with complete Wi-Fi and Bluetooth® functionalities. Compared to other ESP32 modules, ESP32-PICO-V3 integrates the following peripheral components in one single package, which otherwise would need to be installed separately: 40 MHz crystal oscillator 4 MB flash Filter capacitors RF matching network This setup reduces the costs of additional external components as well as the cost of assembly and testing and also increases the overall usability of the product. The development board features a USB-to-UART Bridge circuit which allows developers to connect the board to a computer’s USB port for flashing and debugging. All the IO signals and system power on ESP32-PICO-V3 are led out to two rows of 18 x 0.1” header pads on both sides of the development board for easy access. For compatibility with Dupont wires, all header pads are populated with two rows of male pin headers. Note ESP32-PICO-KIT-1 comes with male headers by default. ESP32-PICO-KIT-1 provides the users with hardware for development of applications based on the ESP32, making it easier for users to explore ESP32 functionalities. ESP32-PICO-KIT-1 Overview (click to enlarge) This guide covers: Getting Started: Provides an overview of the ESP32-PICO-KIT-1 and software setup instructions to get started. Contents and Packaging: Provides information about packaging and contents for retail and wholesale orders. Hardware Reference: Provides more detailed information about the ESP32-PICO-KIT-1’s hardware. Hardware Revision Details: Covers revision history, known issues, and links to user guides for previous versions of the ESP32-PICO-KIT-1. Related Documents: Gives links to related documentation. Disclaimer and Copyright Notice: Link to the disclaimer and copyright notice. Getting Started This section describes how to get started with ESP32-PICO-KIT-1. It begins with a few introductory sections about ESP32-PICO-KIT-1, and then section Start Application Development provides instructions on how to flash firmware onto ESP32-PICO-KIT-1. Description of Components The following figure and the table below describe the key components, interfaces, and controls of the ESP32-PICO-KIT-1 board. ESP32-PICO-KIT-1 board layout - front (click to enlarge) The key components of the board are described, starting from the ESP32-PICO-V3, in a clockwise direction. No. Key Component Description 1 ESP32-PICO-V3 Standard ESP32-PICO-V3 module soldered to the ESP32-PICO-KIT-1 board. The complete ESP32 system on a chip (ESP32 SoC) has been integrated into the SiP module, requiring only an external antenna with LC matching network, decoupling capacitors, and a pull-up resistor for EN signals to function properly. 2 LDO 5V-to-3.3V Low dropout voltage regulator (LDO). 3 USB-to-UART Bridge CP2102N, single USB-to-UART bridge chip, providing transfer rates up to 3 Mbps. 4 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 board. 5 5V Power On LED This red LED turns on when power is supplied to the board. For details, see the schematic in Related Documents. 6 Boot Button Download button. Holding down Boot and then pressing EN initiates Firmware Download mode for downloading firmware through the serial port. 7 EN Button Reset button. 8 I/O Connector All the pins on ESP32-PICO-V3 are broken out to pin headers. You can program ESP32 to enable multiple functions, such as PWM, ADC, DAC, I2C, I2S, SPI, etc. For details, please see Section Pin Descriptions. Start Application Development Before powering up your ESP32-PICO-KIT-1, please make sure that the board is in good condition with no obvious signs of damage. Required Hardware 1 x ESP32-PICO-KIT-1 1 x USB 2.0 cable (Standard-A to Micro-B) 1 x Computer running Windows, Linux, or macOS Software Setup Please proceed to Get Started, where section Installation will quickly help you set up the development environment. Contents and Packaging Retail Orders If you order one or several samples of the board, each ESP32-PICO-KIT-1 development board comes in an individual package. For retail orders, please Get Samples. Wholesale Orders If you order in bulk, the boards come in large cardboard boxes. For wholesale orders, please Contact Sales. Hardware Reference Block Diagram The block diagram below shows the main components of ESP32-PICO-KIT-1 and their interconnections. ESP32-PICO-KIT-1 Block Diagram (click to enlarge) 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. Pin Descriptions The two tables below provide the Name and Function of I/O header pins on both sides of the board, see Description of Components. The pin numbering and header names are the same as in the schematic given in Related Documents. Header J2 No. Name Type Function 1 IO20 I/O GPIO20 2 IO21 I/O GPIO21, VSPIHD, EMAC_TX_EN 3 IO22 I/O GPIO22, VSPIWP, U0RTS, EMAC_TXD1 4 IO19 I/O GPIO19, VSPIQ, U0CTS, EMAC_TXD0 5 IO8 I/O GPIO8, SD_DATA1, HS1_DATA1, U2CTS 6 IO7 I/O GPIO7, SD_DATA0, HS1_DATA0, U2RTS 7 IO5 I/O GPIO5, VSPICS0, HS1_DATA6, EMAC_RX_CLK 8 IO10 I/O GPIO10, SD_DATA3, SPIWP, HS1_DATA3, U1TXD 9 IO9 I/O GPIO9, SD_DATA2, SPIHD, HS1_DATA2, U1RXD 10 RXD0 I/O GPIO3, U0RXD (See note 1), CLK_OUT2 11 TXD0 I/O GPIO1, U0TXD (See note 1), CLK_OUT3, EMAC_RXD2 12 IO35 I ADC1_CH7, RTC_GPIO5 13 IO34 I ADC1_CH6, RTC_GPIO4 14 IO38 I GPIO38, ADC1_CH2, RTC_GPIO2 15 IO37 I GPIO37, ADC1_CH1, RTC_GPIO1 16 EN I CHIP_PU 17 GND P Ground 18 VDD33 (3V3) P 3.3 V power supply Header J3 No. Name Type Function 1 GND P Ground 2 SENSOR_VP (FSVP) I GPIO36, ADC1_CH0, RTC_GPIO0 3 SENSOR_VN (FSVN) I GPIO39, ADC1_CH3, RTC_GPIO3 4 IO25 I/O GPIO25, DAC_1, ADC2_CH8, RTC_GPIO6, EMAC_RXD0 5 IO26 I/O GPIO26, DAC_2, ADC2_CH9, RTC_GPIO7, EMAC_RXD1 6 IO32 I/O 32K_XP (See note 2a), ADC1_CH4, TOUCH9, RTC_GPIO9 7 IO33 I/O 32K_XN (See note 2b), ADC1_CH5, TOUCH8, RTC_GPIO8 8 IO27 I/O GPIO27, ADC2_CH7, TOUCH7, RTC_GPIO17, EMAC_RX_DV 9 IO14 I/O ADC2_CH6, TOUCH6, RTC_GPIO16, MTMS, HSPICLK, HS2_CLK, SD_CLK, EMAC_TXD2 10 IO12 I/O ADC2_CH5, TOUCH5, RTC_GPIO15, MTDI (See note 3), HSPIQ, HS2_DATA2, SD_DATA2, EMAC_TXD3 11 IO13 I/O ADC2_CH4, TOUCH4, RTC_GPIO14, MTCK, HSPID, HS2_DATA3, SD_DATA3, EMAC_RX_ER 12 IO15 I/O ADC2_CH3, TOUCH3, RTC_GPIO13, MTDO, HSPICS0, HS2_CMD, SD_CMD, EMAC_RXD3 13 IO2 I/O ADC2_CH2, TOUCH2, RTC_GPIO12, HSPIWP, HS2_DATA0, SD_DATA0 14 IO4 I/O ADC2_CH0, TOUCH0, RTC_GPIO10, HSPIHD, HS2_DATA1, SD_DATA1, EMAC_TX_ER 15 IO0 I/O ADC2_CH1, TOUCH1, RTC_GPIO11, CLK_OUT1, EMAC_TX_CLK 16 VDD33 (3V3) P 3.3 V power supply 17 GND P Ground 18 EXT_5V (5V) P 5 V power supply Note This pin is connected to the pin of the USB bridge chip on the board. 32.768 kHz crystal oscillator: (a) input; (b) output. The operating voltage of ESP32-PICO-KIT-1’s embedded SPI flash is 3.3 V. Therefore, the strapping pin MTDI should be pulled down during the module power-on reset. If connected, please make sure that this pin is not held up on reset. Pin Layout ESP32-PICO-KIT-1 Pin Layout (click to enlarge) Hardware Revision Details No previous versions available. Related Documents ESP32-PICO-V3 Datasheet (PDF) ESP Product Selector ESP32-PICO-KIT-1 Schematic (PDF) ESP32-PICO-KIT-1 PCB Layout (PDF) For other 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 Documentati