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146 lines
6.0 KiB
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================
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ESP32-S2-Saola-1
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================
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:link_to_translation:`zh_CN:[中文]`
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This user guide provides information on ESP32-S2-Saola-1, a small-sized `ESP32-S2 <https://www.espressif.com/sites/default/files/documentation/esp32-s2_datasheet_en.pdf>`_ based development board produced by Espressif.
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.. figure:: ../../../_static/esp32-s2-saola-1-v1.2-isometric.png
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:align: center
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:alt: ESP32-S2-Saola-1
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:figclass: align-center
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ESP32-S2-Saola-1
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The document consists of the following major sections:
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- `Getting started`_: Provides an overview of the ESP32-S2-Saola-1 and hardware/software setup instructions to get started.
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- `Hardware reference`_: Provides more detailed information about the ESP32-S2-Saola-1's hardware.
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- `Related Documents`_: Gives links to related documentation.
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Getting Started
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===============
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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.
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Overview
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--------
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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.
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To cover a wide range of users' needs, ESP32-S2-Saola-1 supports:
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- `ESP32-S2-WROVER <https://www.espressif.com/sites/default/files/documentation/esp32-s2-wrover_esp32-s2-wrover-i_datasheet_en.pdf>`_
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- `ESP32-S2-WROVER-I <https://www.espressif.com/sites/default/files/documentation/esp32-s2-wrover_esp32-s2-wrover-i_datasheet_en.pdf>`_
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- `ESP32-S2-WROOM <https://www.espressif.com/sites/default/files/documentation/esp32-s2-wroom_esp32-s2-wroom-i_datasheet_en.pdf>`_
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- `ESP32-S2-WROOM-I <https://www.espressif.com/sites/default/files/documentation/esp32-s2-wroom_esp32-s2-wroom-i_datasheet_en.pdf>`_
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In this guide, we take ESP32-S2-Saola-1 equipped with ESP32-S2-WROVER as an example.
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Contents and Packaging
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----------------------
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Retail orders
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^^^^^^^^^^^^^
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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.
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For retail orders, please go to https://www.espressif.com/en/company/contact/buy-a-sample.
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Wholesale Orders
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^^^^^^^^^^^^^^^^
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If you order in bulk, the boards come in large cardboard boxes.
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For wholesale orders, please check `Espressif Product Ordering Information <https://www.espressif.com/sites/default/files/documentation/espressif_products_ordering_information_en.pdf>`_ (PDF)
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Description of Components
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-------------------------
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.. figure:: ../../../_static/esp32-s2-saola-1-v1.2-annotated-photo.png
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:align: center
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:alt: ESP32-S2-Saola-1 - front/back
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:figclass: align-center
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ESP32-S2-Saola-1 - front
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.. list-table::
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:widths: 30 70
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:header-rows: 1
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* - Key Component
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- Description
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* - ESP32-S2-WROVER
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- 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.
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* - I/O Connector
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- 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.
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* - USB to UART Bridge
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- Single USB-UART bridge chip provides transfer rates up to 3 Mbps.
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* - Boot Button
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- Download button. Holding down Boot and then pressing Reset initiates Firmware Download mode for downloading firmware through the serial port.
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* - Reset Button
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- Reset button.
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* - 3.3 V Power On LED
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- Turns on when the USB power is connected to the board.
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* - Micro-USB Port
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- USB interface. Power supply for the board as well as the communication interface between a computer and the ESP32-S2 chip.
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* - RGB LED
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- Addressable RGB LED (WS2812), driven by GPIO18.
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Start Application Development
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-----------------------------
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Before powering up your ESP32-S2-Saola-1, please make sure that it is in good condition with no obvious signs of damage.
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Required Hardware
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^^^^^^^^^^^^^^^^^
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- ESP32-S2-Saola-1
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- USB 2.0 cable (Standard-A to Micro-B)
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- Computer running Windows, Linux, or macOS
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Software Setup
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^^^^^^^^^^^^^^
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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.
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.. note::
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ESP32-S2 only supports ESP-IDF master or version v4.2 and higher.
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Hardware Reference
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==================
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Block Diagram
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-------------
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A block diagram below shows the components of ESP32-S2-Saola-1 and their interconnections.
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.. figure:: ../../../_static/esp32-s2-saola-1-v1.2-block-diags.png
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:align: center
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:scale: 70%
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:alt: ESP32-S2-Saola-1 (click to enlarge)
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:figclass: align-center
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ESP32-S2-Saola-1 (click to enlarge)
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Power Supply Options
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^^^^^^^^^^^^^^^^^^^^
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There are three mutually exclusive ways to provide power to the board:
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- Micro USB port, default power supply
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- 5V and GND header pins
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- 3V3 and GND header pins
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Related Documents
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=================
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* `ESP32-S2-Saola-1 Schematics <https://dl.espressif.com/dl/schematics/ESP32-S2-SAOLA-1_V1.1_schematics.pdf>`_ (PDF)
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* `ESP32-S2 Datasheet <https://www.espressif.com/sites/default/files/documentation/esp32-s2_datasheet_en.pdf>`_ (PDF)
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* `ESP32-S2-WROVER & ESP32-S2-WROVER-I Datasheet <https://www.espressif.com/sites/default/files/documentation/esp32-s2-wrover_esp32-s2-wrover-i_datasheet_en.pdf>`_ (PDF)
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* `ESP32-S2-WROOM & ESP32-S2-WROOM-I Datasheet <https://www.espressif.com/sites/default/files/documentation/esp32-s2-wroom_esp32-s2-wroom-i_datasheet_en.pdf>`_ (PDF)
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* `Espressif Product Ordering Information <https://www.espressif.com/sites/default/files/documentation/espressif_products_ordering_information_en.pdf>`_ (PDF)
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