================ ESP32-S2-Saola-1 ================ :link_to_translation:`zh_CN:[中文]` This user guide provides information on ESP32-S2-Saola-1, a small-sized `ESP32-S2 `_ based development board produced by Espressif. .. figure:: ../../../_static/esp32-s2-saola-1-v1.2-isometric.png :align: center :alt: ESP32-S2-Saola-1 :figclass: align-center ESP32-S2-Saola-1 The document consists of the following major sections: - `Getting started`_: Provides an overview of the ESP32-S2-Saola-1 and hardware/software setup instructions to get started. - `Hardware reference`_: Provides more detailed information about the ESP32-S2-Saola-1's hardware. - `Related Documents`_: Gives links to related documentation. Getting Started =============== This section describes how to get started with ESP32-S2-Saola-1. It begins with a few introductory sections about the ESP32-S2-Saola-1, then Section `Start Application Development`_ provides instructions on how to get the ESP32-S2-Saola-1 ready and flash firmware into it. Overview -------- ESP32-S2-Saola-1 is a small-sized ESP32-S2 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-S2-Saola-1 on a breadboard. To cover a wide range of users' needs, ESP32-S2-Saola-1 supports: - `ESP32-S2-WROVER `_ - `ESP32-S2-WROVER-I `_ - `ESP32-S2-WROOM `_ - `ESP32-S2-WROOM-I `_ In this guide, we take ESP32-S2-Saola-1 equipped with ESP32-S2-WROVER as an example. Contents and Packaging ---------------------- Retail orders ^^^^^^^^^^^^^ If you order a few samples, each ESP32-S2-Saola-1 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 ------------------------- .. figure:: ../../../_static/esp32-s2-saola-1-v1.2-annotated-photo.png :align: center :alt: ESP32-S2-Saola-1 - front/back :figclass: align-center ESP32-S2-Saola-1 - front .. list-table:: :widths: 30 70 :header-rows: 1 * - Key Component - Description * - ESP32-S2-WROVER - ESP32-S2-WROVER is a powerful, generic Wi-Fi MCU module that integrates ESP32-S2. It has a PCB antenna, a 4 MB external SPI flash and an additional 2 MB PSRAM. * - I/O Connector - All available GPIO pins (except for the SPI bus for flash and PSRAM) are broken out to the pin headers on the board. Users can program ESP32-S2 chip to enable multiple functions such as SPI, I2S, UART, I2C, touch sensors, PWM etc. * - USB to UART Bridge - Single USB-UART bridge chip provides transfer rates up to 3 Mbps. * - Boot Button - Download button. Holding down Boot and then pressing Reset initiates Firmware Download mode for downloading firmware through the serial port. * - Reset Button - Reset button. * - 3.3 V Power On LED - Turns on when the USB power is connected to the board. * - Micro-USB Port - USB interface. Power supply for the board as well as the communication interface between a computer and the ESP32-S2 chip. * - RGB LED - Addressable RGB LED (WS2812), driven by GPIO18. Start Application Development ----------------------------- Before powering up your ESP32-S2-Saola-1, please make sure that it is in good condition with no obvious signs of damage. Required Hardware ^^^^^^^^^^^^^^^^^ - ESP32-S2-Saola-1 - 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-Saola-1. .. note:: ESP32-S2 only supports ESP-IDF master or version v4.2 and higher. Hardware Reference ================== Block Diagram ------------- A block diagram below shows the components of ESP32-S2-Saola-1 and their interconnections. .. figure:: ../../../_static/esp32-s2-saola-1-v1.2-block-diags.png :align: center :scale: 70% :alt: ESP32-S2-Saola-1 (click to enlarge) :figclass: align-center ESP32-S2-Saola-1 (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 header pins - 3V3 and GND header pins Related Documents ================= * `ESP32-S2-Saola-1 Schematics `_ (PDF) * `ESP32-S2 Datasheet `_ (PDF) * `ESP32-S2-WROVER & ESP32-S2-WROVER-I Datasheet `_ (PDF) * `ESP32-S2-WROOM & ESP32-S2-WROOM-I Datasheet `_ (PDF) * `Espressif Product Ordering Information `_ (PDF)