===================== ESP32-S2-DevKitM-1(U) ===================== :link_to_translation:`zh_CN:[中文]` This user guide provides information on Espressif's small-sized development board ESP32-S2-DevKitM-1(U). ESP32-S2-DevKitM-1(U) is a general-purpose development board based on `ESP32-S2FH4 `__ chip, which falls into ESP32-S2 chip series. With a rich peripheral set and optimized pinout, this board allows rapid prototyping. ESP32-S2-DevKitM-1 is embedded with `ESP32-S2-MINI-1 `__ module (on-board PCB antenna), while ESP32-S2-DevKitM-1U with `ESP32-S2-MINI-1U `__ module (external antenna connector). +----------------------+-----------------------+ | |ESP32-S2-DevKitM-1| | |ESP32-S2-DevKitM-1U| | +----------------------+-----------------------+ | ESP32-S2-DevKitM-1 | ESP32-S2-DevKitM-1U | +----------------------+-----------------------+ .. |ESP32-S2-DevKitM-1| image:: ../../../_static/esp32-s2-devkitm-1-v1-isometric.png .. |ESP32-S2-DevKitM-1U| image:: ../../../_static/esp32-s2-devkitm-1u-v1-isometric.png The document consists of the following major sections: - `Getting started`_: Provides an overview of the ESP32-S2-DevKitM-1(U) and hardware/software setup instructions to get started. - `Hardware reference`_: Provides more detailed information about the ESP32-S2-DevKitM-1(U)'s hardware. - `Hardware Revision Details`_: Revision history, known issues, and links to user guides for previous versions (if any) of ESP32-S2-DevKitM-1(U). - `Related Documents`_: Gives links to related documentation. Getting Started =============== This section describes how to get started with ESP32-S2-DevKitM-1(U). It begins with a few introductory sections about the ESP32-S2-DevKitM-1(U), then Section `Start Application Development`_ provides instructions on how to get the ESP32-S2-DevKitM-1(U) ready and flash firmware into it. Overview -------- ESP32-S2-DevKitM-1(U) is entry-level development board equipped with either ESP32-S2-MINI-1 or ESP32-S2-MINI-1U module. Most of the I/O pins on the module are broken out to the pin headers on both sides for easy interfacing. Developers can either connect peripherals with jumper wires or mount ESP32-S2-DevKitM-1(U) on a breadboard. Contents and Packaging ---------------------- Retail orders ^^^^^^^^^^^^^ If you order a few samples, each ESP32-S2-DevKitM-1(U) comes in an individual package in either antistatic bag or any packaging depending on your retailer. For retail orders, please go to https://www.espressif.com/en/company/contact/buy-a-sample. Wholesale Orders ^^^^^^^^^^^^^^^^ If you order in bulk, the boards come in large cardboard boxes. For wholesale orders, please check `Espressif Product Ordering Information `_ (PDF). Description of Components ------------------------- .. _user-guide-devkitm-1-v1-board-front: .. figure:: ../../../_static/esp32-s2-devkitm-1-v1-annotated-photo.png :align: center :alt: ESP32-S2-DevKitM-1 - front :figclass: align-center ESP32-S2-DevKitM-1 - front .. figure:: ../../../_static/esp32-s2-devkitm-1u-v1-annotated-photo.png :align: center :alt: ESP32-S2-DevKitM-1U - front :figclass: align-center ESP32-S2-DevKitM-1U - front The key components of the board are described in a clockwise direction. .. list-table:: :widths: 30 70 :header-rows: 1 * - Key Component - Description * - ESP32-S2-MINI-1 or ESP32-S2-MINI-1U - ESP32-S2-MINI-1 and ESP32-S2-MINI-1U are two powerful, generic Wi-Fi MCU modules that integrate ESP32-S2FH4 chip. ESP32-S2-MINI-1 comes with a PCB antenna, and ESP32-S2-MINI-1U with an external antenna connector. They both feature a 4 MB external SPI flash. * - Pin Headers - 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-S2FH4 chip to enable multiple functions such as SPI, I2S, UART, I2C, touch sensors, PWM etc. For details, please see :ref:`user-guide-devkitm-1-v1-header-blocks`. * - 3.3 V Power On LED - Turns on when the USB power is connected to the board. * - USB to UART Bridge - Single USB-UART bridge chip provides transfer rates up to 3 Mbps. * - 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-S2FH4 chip. * - Boot Button - Download button. Holding down **Boot** and then pressing **Reset** initiates Firmware Download mode for downloading firmware through the serial port. * - RGB LED - Addressable RGB LED, driven by GPIO18. * - 5 V to 3.3 V LDO - Power regulator that converts a 5 V supply into a 3.3 V output. * - External Antenna Connector - On **ESP32-S2-MINI-1U** module only. For connector dimensions, please refer to Section External Antenna Connector Dimensions in `ESP32-S2-MINI-1 & ESP32-S2-MINI-1U Datasheet `_. Start Application Development ----------------------------- Before powering up your ESP32-S2-DevKitM-1(U), please make sure that it is in good condition with no obvious signs of damage. Required Hardware ^^^^^^^^^^^^^^^^^ - ESP32-S2-DevKitM-1(U) + For ESP32-S2-DevKitM-1U, an antenna is also required. - USB 2.0 cable (Standard-A to Micro-B) - Computer running Windows, Linux, or macOS .. note:: Be sure to use an appropriate USB cable. Some cables are for charging only and do not provide the needed data lines nor work for programming the boards. Software Setup ^^^^^^^^^^^^^^ Please proceed to :doc:`../../get-started/index`, where Section :ref:`get-started-step-by-step` will quickly help you set up the development environment and then flash an application example into your ESP32-S2-DevKitM-1(U). .. note:: ESP32-S2 series of chips only is only supported in ESP-IDF master or version v4.2 and higher. Hardware Reference ================== Block Diagram ------------- A block diagram below shows the components of ESP32-S2-DevKitM-1 and their interconnections. .. figure:: ../../../_static/esp32-s2-devkitm-1-v1-block-diagram.png :align: center :scale: 70% :alt: ESP32-S2-DevKitM-1(U) (click to enlarge) :figclass: align-center ESP32-S2-DevKitM-1(U) (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 and GND pin headers - 3V3 and GND pin headers It is recommended to use the first option: Micro-USB Port. .. _user-guide-devkitm-1-v1-header-blocks: Header Block ------------ The two tables below provide the **Name** and **Function** of the pin headers on both sides of the board (J1 and J3). The pin header names are shown in :ref:`user-guide-devkitm-1-v1-board-front`. The numbering is the same as in the `ESP32-S2-DevKitM-1(U) Schematics `_ (PDF). J1 ^^^ === ==== ========== ============================================================= No. Name Type [#]_ Function === ==== ========== ============================================================= 1 3V3 P 3.3 V power supply 2 0 I/O/T RTC_GPIO0, GPIO0 3 1 I/O/T RTC_GPIO1, GPIO1, TOUCH1, ADC1_CH0 4 2 I/O/T RTC_GPIO2, GPIO2, TOUCH2, ADC1_CH1 5 3 I/O/T RTC_GPIO3, GPIO3, TOUCH3, ADC1_CH2 6 4 I/O/T RTC_GPIO4, GPIO4, TOUCH4, ADC1_CH3 7 5 I/O/T RTC_GPIO5, GPIO5, TOUCH5, ADC1_CH4 8 6 I/O/T RTC_GPIO6, GPIO6, TOUCH6, ADC1_CH5 9 7 I/O/T RTC_GPIO7, GPIO7, TOUCH7, ADC1_CH6 10 8 I/O/T RTC_GPIO8, GPIO8, TOUCH8, ADC1_CH7 11 9 I/O/T RTC_GPIO9, GPIO9, TOUCH9, ADC1_CH8, FSPIHD 12 10 I/O/T RTC_GPIO10, GPIO10, TOUCH10, ADC1_CH9, FSPICS0, FSPIIO4 13 11 I/O/T RTC_GPIO11, GPIO11, TOUCH11, ADC2_CH0, FSPID, FSPIIO5 14 12 I/O/T RTC_GPIO12, GPIO12, TOUCH12, ADC2_CH1, FSPICLK, FSPIIO6 15 13 I/O/T RTC_GPIO13, GPIO13, TOUCH13, ADC2_CH2, FSPIQ, FSPIIO7 16 14 I/O/T RTC_GPIO14, GPIO14, TOUCH14, ADC2_CH3, FSPIWP, FSPIDQS 17 15 I/O/T RTC_GPIO15, GPIO15, U0RTS, ADC2_CH4, XTAL_32K_P 18 16 I/O/T RTC_GPIO16, GPIO16, U0CTS, ADC2_CH5, XTAL_32K_N 19 17 I/O/T RTC_GPIO17, GPIO17, U1TXD, ADC2_CH6, DAC_1 20 5V P 5 V power supply 21 G G Ground === ==== ========== ============================================================= J3 ^^^ === ==== ===== ======================================================== No. Name Type Function === ==== ===== ======================================================== 1 G G Ground 2 RST I CHIP_PU 3 46 I GPIO46 4 45 I/O/T GPIO45 5 RX I/O/T U0RXD, GPIO44, CLK_OUT2 6 TX I/O/T U0TXD, GPIO43, CLK_OUT1 7 42 I/O/T MTMS, GPIO42 8 41 I/O/T MTDI, GPIO41, CLK_OUT1 9 40 I/O/T MTDO, GPIO40, CLK_OUT2 10 39 I/O/T MTCK, GPIO39, CLK_OUT3 11 38 I/O/T GPIO38, FSPIWP 12 37 I/O/T SPIDQS, GPIO37, FSPIQ 13 36 I/O/T SPIIO7, GPIO36, FSPICLK 14 35 I/O/T SPIIO6, GPIO35, FSPID 15 34 I/O/T SPIIO5, GPIO34, FSPICS0 16 33 I/O/T SPIIO4, GPIO33, FSPIHD 17 26 I/O/T SPICS1, GPIO26 18 21 I/O/T RTC_GPIO21, GPIO21 19 20 I/O/T RTC_GPIO20, GPIO20, U1CTS, ADC2_CH9, CLK_OUT1, USB_D+ 20 19 I/O/T RTC_GPIO19, GPIO19, U1RTS, ADC2_CH8, CLK_OUT2, USB_D- 21 18 I/O/T RTC_GPIO18, GPIO18, U1RXD, ADC2_CH7, DAC_2, CLK_OUT3, RGB LED === ==== ===== ======================================================== .. [#] P: Power supply; I: Input; O: Output; T: High impedance. Pin Layout ^^^^^^^^^^^ .. figure:: ../../../_static/esp32-s2-devkitm-1-v1-pin-layout.png :align: center :scale: 15% :alt: ESP32-S2-DevKitM-1(U) (click to enlarge) :figclass: align-center ESP32-S2-DevKitM-1(U) Pin Layout (click to enlarge) Hardware Revision Details ========================= This is the first revision of this board released. Related Documents ================= * `ESP32-S2-DevKitM-1(U) Schematics `_ (PDF) * `ESP32-S2-DevKitM-1(U) PCB Layout `_ (PDF) * `ESP32-S2-DevKitM-1(U) Dimensions `_ (PDF) * `ESP32-S2 Series Datasheet `_ (PDF) * `ESP32-S2-MINI-1 & ESP32-S2-MINI-1U Datasheet `_ (PDF) * `Espressif Product Ordering Information `_ (PDF) For other design documentation for the board, please contact us at `sales@espressif.com `_.