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 <https://www.espressif.com/sites/default/files/documentation/esp32-s2_datasheet_en.pdf>`__ chip, which falls into ESP32-S2 chip family. With a rich peripheral set and optimized pinout, this board allows rapid prototyping.
ESP32-S2-DevKitM-1 is embedded with `ESP32-S2-MINI-1 <https://www.espressif.com/sites/default/files/documentation/esp32-s2-mini-1_esp32-s2-mini-1u_datasheet_en.pdf>`__ module (on-board PCB antenna), while ESP32-S2-DevKitM-1U with `ESP32-S2-MINI-1U <https://www.espressif.com/sites/default/files/documentation/esp32-s2-mini-1_esp32-s2-mini-1u_datasheet_en.pdf>`__ module (U.FL connector to support external IPEX antenna).
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.
-`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.
- 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 a U.FL connector for external IPEX antenna. They both feature a 4 MB external SPI flash.
* - 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.
* - 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-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`.
* - 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 (WS2812), driven by GPIO18.
* - 5 V to 3.3 V LDO
- Power regulator that converts a 5 V supply into a 3.3 V output.
* - U.FL Connector
- On **ESP32-S2-MINI-1U** module only. Connects to an external IPEX antenna.
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 IPEX antenna is also required.
- USB 2.0 cable (Standard-A to Micro-B)
- Computer running Windows, Linux, or macOS
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 family chip 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.
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
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 I/O header pins on both sides of the board, as shown in :ref:`user-guide-devkitm-1-v1-board-front`. The numbering and names are the same as in the `ESP32-S2-DevKitM-1(U) Schematics <https://dl.espressif.com/dl/schematics/ESP32-S2-DevKitM-1_V1_Schematics.pdf>`_ (PDF).
