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+=====================
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+ESP32-S2-Kaluga-1 Kit
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+=====================
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+
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+:link_to_translation:`zh_CN:[中文]`
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+
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+The ESP32-S2-Kaluga-1 kit is a development kit by Espressif that is mainly created to:
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+
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+- Demonstrate the ESP32-S2's human-computer interaction functionalities
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+- Provide the users with the tools for development of human-computer interaction applications based on the ESP32-S2
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+
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+There are many ways of how the ESP32-S2's abundant functionalities can be used. For starters, the possible use cases may include:
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+
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+- **Smart home**: From simplest smart lighting, smart door locks, smart sockets, to video streaming devices, security cameras, OTT devices, and home appliances
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+- **Battery-powered equipment**: Wi-Fi mesh sensor networks, Wi-Fi-networked toys, wearable devices, health management equipment
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+- **Industrial automation equipment**: Wireless control and robot technology, intelligent lighting, HVAC control equipment, etc.
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+- **Retail and catering industry**: POS machines and service robots
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+
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+
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+.. figure:: https://dl.espressif.com/dl/schematics/pictures/esp32-s2-kaluga-1-kit-v1.0-3d.png
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+ :align: center
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+ :scale: 90%
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+ :alt: ESP32-S2-Kaluga-1-Kit-Assembly
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+ :figclass: align-center
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+
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+ ESP32-S2-Kaluga-1-Kit Overview (click to enlarge)
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+
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+
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+The ESP32-S2-Kaluga-1 kit consists of the following boards:
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+
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+- Main board: *ESP32-S2-Kaluga-1*
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+- Extension boards:
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+
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+ - :doc:`ESP-LyraT-8311A <user-guide-esp-lyrat-8311a_v1.2>` audio player
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+ - :doc:`ESP-LyraP-TouchA <user-guide-esp-lyrap-toucha-v1.1>` touch panel
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+ - :doc:`ESP-LyraP-LCD32 <user-guide-esp-lyrap-lcd32-v1.1>` 3.2" LCD screen
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+ - :doc:`ESP-LyraP-CAM <user-guide-esp-lyrap-cam-v1.0>` camera board
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+
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+This document is **mostly dedicated to the main board** and its interaction with the extension boards. For more detailed information on each extension board, click their respective links.
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+
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+This guide covers:
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+
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+- `Getting Started`_: Provides an overview of the ESP32-S2-Kaluga-1 and hardware/software setup instructions to get started.
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+- `Hardware reference`_: Provides more detailed information about the ESP32-S2-Kaluga-1's hardware.
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+- `Hardware Revision Details`_: Covers revision history, known issues, and links to user guides for previous versions of the ESP32-S2-Kaluga-1.
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+- `Related Documents`_: Gives links to related documentation.
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+
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+
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+Getting Started
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+===============
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+
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+
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+This section describes how to get started with the ESP32-S2-Kaluga-1. It begins with a few introductory sections about the ESP32-S2-Kaluga-1, then Section `Start Application Development`_ provides instructions on how to do the initial hardware setup and then how to flash firmware onto the ESP32-S2-Kaluga-1.
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+
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+
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+Overview
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+--------
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+
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+The ESP32-S2-Kaluga-1 main board is the heart of the kit. It integrates the ESP32-S2-WROVER module and all the connectors for extension boards. This board is the key tool in prototyping human-computer interaction interfaces.
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+
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+The ESP32-S2-Kaluga-1 board has connectors for:
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+
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+- Boards with the Extension Header (ESP-LyraT-8311A, ESP-LyraP-LCD32)
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+- Camera board (ESP-LyraP-CAM)
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+- Touch panel (ESP-LyraP-TouchA)
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+- LCD displays (no official extension boards yet)
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+- I2C devices (no official extension boards yet)
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+
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+.. figure:: https://dl.espressif.com/dl/schematics/pictures/esp32-s2-kaluga-1-v1.2-3d.png
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+ :align: center
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+ :scale: 90%
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+ :alt: ESP32-S2-Kaluga-1
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+ :figclass: align-center
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+
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+ ESP32-S2-Kaluga-1 (click to enlarge)
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+
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+All the four extension boards are specially desgined to support the following features:
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+
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+* Touch panel control
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+ * 14 touch sensors, three of which support distance sensing (proximity mode)
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+ * Supports acrylic panels up to 5 mm
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+ * Wet hand operation
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+ * Water rejection, ESP32-S2 can be configured to disable all touchpads automatically if multiple pads are simultaneously covered with water and to re-enable touchpads if the water is removed
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+
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+* Audio playback
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+ * Connect speakers to play audio
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+ * Use together with the Touch panel to control audio playback and adjust volume
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+
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+* LCD display
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+ * LCD interface (8-bit parallel RGB, 8080, and 6800 interface)
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+
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+* Camera image acquisition
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+ * Supports OV2640 and OV3660 camera modules
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+ * 8-bit DVP image sensor interface (ESP32-S2 also supports 16-bit DVP image sensors, you can design it yourself)
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+ * Clock frequency up to 40 MHz
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+ * Optimized DMA transmission bandwidth for easier transmission of high-resolution images
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+
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+
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+Description of Components
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+-------------------------
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+
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+.. figure:: https://dl.espressif.com/dl/schematics/pictures/esp32-s2-kaluga-1-v1.2-layout-front.png
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+ :align: center
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+ :scale: 90%
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+ :alt: ESP32-S2-Kaluga-1 - front
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+ :figclass: align-center
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+
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+ ESP32-S2-Kaluga-1 - front (click to enlarge)
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+
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+
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+The description of components starts from the ESP32-S2 module on the left side and then goes clockwise.
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+
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+**Reserved** means that the functionality is available, but the current version of the kit does not use it.
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+
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+
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+.. list-table::
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+ :widths: 30 70
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+ :header-rows: 1
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+
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+ * - Key Component
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+ - Description
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+ * - ESP32-S2-WROVER Module
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+ - Module integrating the ESP32-S2 chip that provides Wi-Fi connectivity, data processing power, and flexible data storage
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+ * - 4.3" LCD FPC Connector
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+ - (Reserved) Connect to a 4.3" LCD extension board using the FPC cable
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+ * - ESP Prog Connector
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+ - (Reserved) Connection for Espressif's download device (ESP-Prog) to flash ESP32-S2 system
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+ * - JTAG Switch
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+ - Switch to ON to enable connection between ESP32-S2 and FT2232
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+ * - Breakout Header 2
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+ - Some GPIO pins of the ESP32-S2-WROVER module are broken out to this header, see labels on the board
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+ * - USB-to-UART/JTAG Bridge
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+ - FT2232 adapter board allowing for communication over USB port using UART/JTAG protocols
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+ * - Camera Header
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+ - Mount a camera extension board here (e.g., ESP-LyraP-CAM)
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+ * - Extension Header
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+ - Mount the extension boards having such connectors here
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+ * - Reset Button
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+ - Press this button to restart the system
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+ * - Boot Button
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+ - Holding down **Boot** and then pressing **Reset** initiates Firmware Download mode for downloading firmware through the serial port
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+ * - USB-UART/JTAG Port
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+ - Communication interface (UART or JTAG) between a PC and the ESP32-S2 module
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+ * - USB Power Port
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+ - Power supply for the board
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+ * - Battery Port
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+ - Connect an external battery to the 2-pin connector
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+ * - Power Switch
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+ - Switch to ON to power the system
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+ * - RGB Jumper
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+ - To have access to the RGB LED, place a jumper onto the pins
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+ * - RGB LED
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+ - Programmable RGB LED and controlled by GPIO45. Before using it, you need to put RGB Jumper ON.
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+ * - Power Regulator
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+ - Regulator converts 5 V to 3.3 V
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+ * - I2C FPC Connector
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+ - (Reserved) Connect to other I2C extension boards using the FPC cable
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+ * - Breakout Header 1
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+ - Some GPIO pins of the ESP32-S2-WROVER module are broken out to this header, see labels on the board
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+ * - Touch FPC Connector
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+ - Connect the ESP-LyraP-TouchA extension board using the FPC cable
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+ * - Touch Switch
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+ - In OFF position, GPIO1 to GPIO14 are used for connection to touch sensors; switch to ON if you want to use them for other purposes
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+ * - 3.2" LCD FPC connector
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+ - Connect a 3.2" LCD extension board (e.g., ESP-LyraP-LCD32) using the FPC cable
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+
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+
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+Start Application Development
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+-----------------------------
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+
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+Before powering up your ESP32-S2-Kaluga-1, please make sure that it is in good condition with no obvious signs of damage.
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+
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+
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+Required Hardware
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+^^^^^^^^^^^^^^^^^
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+
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+- ESP32-S2-Kaluga-1
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+- Two USB 2.0 cables (Standard-A to Micro-B)
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+
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+ - For power supply
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+ - For UART/JTAG communication
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+
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+- Computer running Windows, Linux, or macOS
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+- Any extension boards of your choice
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+
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+
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+Hardware Setup
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+^^^^^^^^^^^^^^
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+
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+1. Connect the extension board(s) of your choice (go to their respective user guides if necessary)
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+2. Plug in both USB cables
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+3. Turn the **Power Switch** to ON - the Power On LED will light up
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+
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+
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+.. _user-guide-esp32-s2-kaluga-1-kit-software-setup:
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+
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+Software Setup
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+^^^^^^^^^^^^^^
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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.
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+
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+The programming guide and application examples for your ESP32-S2-Kaluga-1 kit can be found `here <https://github.com/espressif/esp-dev-kits/tree/master/esp32-s2-kaluga-1>`_.
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+
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+
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+Contents and Packaging
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+----------------------
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+
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+Retail orders
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+^^^^^^^^^^^^^
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+
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+If you order one or several samples of the kit, each ESP32-S2-Kaluga-1 development kit comes in an individual package containing:
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+
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+- Main Board
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+ - ESP32-S2-Kaluga-1
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+- Extension Boards:
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+ - ESP-LyraT-8311A
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+ - ESP-LyraP-CAM
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+ - ESP-LyraP-TouchA
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+ - ESP-LyraP-LCD32
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+- Connectors
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+ - 20-pin FPC cable (to connect ESP32-S2-Kaluga-1 to ESP-LyraP-TouchA)
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+- Fasteners
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+ - Mounting bolts (x8)
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+ - Screws (x4)
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+ - Nuts (x4)
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+
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+For retail orders, please go to https://www.espressif.com/en/company/contact/buy-a-sample.
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+
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+
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+Wholesale Orders
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+^^^^^^^^^^^^^^^^
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+
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+If you order in bulk, the boards come in large cardboard boxes.
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+
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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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+
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+
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+Hardware Reference
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+==================
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+
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+
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+Block Diagram
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+-------------
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+
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+A block diagram below shows the components of the ESP32-S2-Kaluga-1 and their interconnections.
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+
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+.. figure:: https://dl.espressif.com/dl/schematics/pictures/esp32-s2-kaluga-1-v1.2-block-diagram.png
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+ :align: center
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+ :alt: ESP32-S2-Kaluga-1 block diagram
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+ :figclass: align-center
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+
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+ ESP32-S2-Kaluga-1 block diagram
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+
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+
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+Power Supply Options
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+--------------------
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+
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+There are four ways to provide power to the board:
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+
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+- Micro USB port, default power supply
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+- External battery via the 2-pin *BAT* connector
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+- 5V and GND header pins
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+- 3V3 and GND header pins
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+
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+
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+Hardware Revision Details
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+=========================
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+
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+No previous versions available.
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+
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+
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+Related Documents
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+=================
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+
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+.. toctree::
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+ :hidden:
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+
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+ user-guide-esp-lyrap-cam-v1.0
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+ user-guide-esp-lyrap-lcd32-v1.1
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+ user-guide-esp-lyrap-toucha-v1.1
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+ user-guide-esp-lyrat-8311a_v1.2
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+
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+- `ESP32-S2-WROVER Datasheet <https://www.espressif.com/sites/default/files/documentation/esp32-s2-wrover_esp32-s2-wrover-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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+
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+- `ESP32-S2-Kaluga-1 Schematic <https://dl.espressif.com/dl/schematics/ESP32-S2-Kaluga-1_V1_2_SCH_20200424A.pdf>`_ (PDF)
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+- `ESP32-S2-Kaluga-1 PCB Layout <https://dl.espressif.com/dl/schematics/ESP32-S2-Kaluga-1_V1_2_PCB_20200325AF.pdf>`_ (PDF)
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+- `ESP32-S2-Kaluga-1 Pin Mapping <https://dl.espressif.com/dl/schematics/ESP32-S2-Kaluga-1_V1.2_Pin-Mapping.xlsx>`_ (Excel)
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+
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+For other design documentation for the board, please contact us at sales@espressif.com.
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Krzysztof Budzynski