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1 protocols, as well as for JTAG debugging. - Single USB-to-UART bridge chip provides transfer rates up to 3 Mbps. - Addressable RGB LED, driven by GPIO48. - Turns on when the USB power is connected to the board. .. note:: For boards with Octal SPI flash/PSRAM memory embedded ESP32-S3-WROOM-1/1U modules, and boards with ESP32-S3-WROOM-2 modules, the pins GPIO35, GPIO36 and GPIO37 are used for the internal communication between ESP32-S3 and SPI flash/PSRAM memory, thus not available for external use. Start Application Development Before powering up your board, please make sure that it is in good condition with no obvious signs of damage. Required Hardware - ESP32-S3-DevKitC-1 - 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. Hardware Setup Connect the board with the computer using **USB-to-UART Port**.

Connection using **ESP32-S3 USB Port** is not fully implemented in software. In subsequent steps, **USB-to-UART Port** will be used by default. 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 onto your board. Contents and Packaging Ordering Information The development board has a variety of variants to choose from, as shown in the table below. .. list-table:: :widths: 28 29 19 17 15 :header-rows: 1 - Module Integrated - Flash - PSRAM - SPI Voltage - ESP32-S3-WROOM-1-N8 - 8 MB QD - — - 3.3 V - ESP32-S3-WROOM-1-N8R2 - 8 MB QD - 2 MB QD - 3.3 V - ESP32-S3-WROOM-1-N8R8 - 8 MB QD - 8 MB OT - 3.3 V - ESP32-S3-WROOM-2-N16R8V - 16 MB OT - 8 MB OT - 1.8 V - ESP32-S3-WROOM-2-N32R8V - 32 MB OT - 8 MB OT - 1.

8 V - ESP32-S3-WROOM-1U-N8 - 8 MB QD - — - 3.3 V - ESP32-S3-WROOM-1U-N8R2 - 8 MB QD - 2 MB QD - 3.3 V - ESP32-S3-WROOM-1U-N8R8 - 8 MB QD - 8 MB OT - 3.3 V .. note:: In the table above, QD stands for Quad SPI and OT stands for Octal SPI. Retail Orders If you order a few samples, each board 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 go to https://www.espressif.com/en/contact-us/sales-questions. Hardware Reference Block Diagram The block diagram below shows the components of ESP32-S3-DevKitC-1 and their interconnections. .. figure:: ../../../_static/ESP32-S3-DevKitC-1_v2-SystemBlock.png :align: center :scale: 70% :alt: ESP32-S3-DevKitC-1 (click to enlarge) ESP32-S3-DevKitC-1 (click to enlarge) Power Supply Options There are three mutually exclusive ways to provide power to the board: - USB-to-UART Port and ESP32-S3 USB Port (either one or both), default power supply (recommended) - 5V and G (GND) pins - 3V3 and G (GND) pins .

. _user-guide-s3-devkitc-1-v1-header-blocks: Header Block The two tables below provide the **Name** and **Function** of the pins on both sides of the board (J1 and J3). The pin names are shown in :ref:`user-guide-s3-devkitc-1-v1-board-front`. The numbering is the same as in the `Board Schematic `_ (PDF). J1 ^^^ === No. Name Type [#]_ Function === 1 3V3 P 3.3 V power supply 2 3V3 P 3.3 V power supply 3 RST I EN 4 4 I/O/T RTC_GPIO4, GPIO4, TOUCH4, ADC1_CH3 5 5 I/O/T RTC_GPIO5, GPIO5, TOUCH5, ADC1_CH4 6 6 I/O/T RTC_GPIO6, GPIO6, TOUCH6, ADC1_CH5 7 7 I/O/T RTC_GPIO7, GPIO7, TOUCH7, ADC1_CH6 8 15 I/O/T RTC_GPIO15, GPIO15, U0RTS, ADC2_CH4, XTAL_32K_P 9 16 I/O/T RTC_GPIO16, GPIO16, U0CTS, ADC2_CH5, XTAL_32K_N 10 17 I/O/T RTC_GPIO17, GPIO17, U1TXD, ADC2_CH6 11 18 I/O/T RTC_GPIO18, GPIO18, U1RXD, ADC2_CH7, CLK_OUT3 12 8 I/O/T RTC_GPIO8, GPIO8, TOUCH8, ADC1_CH7, SUBSPICS1 13 3 I/O/T RTC_GPIO3, GPIO3, TOUCH3, ADC1_CH2 14 46 I/O/T GPIO46 15 9 I/O/T RTC_GPIO9, GPIO9, TOUCH9, ADC1_CH8, FSPIHD, SUBSPIHD 16 10 I/O/T RTC_GPIO10, GPIO10, TOUCH10, ADC1_CH9, FSPICS0, FSPIIO4, SUBSPICS0 17 11 I/O/T RTC_GPIO11, GPIO11, TOUCH11, ADC2_CH0, FSPID, FSPIIO5, SUBSPID 18 12 I/O/T RTC_GPIO12, GPIO12, TOUCH12, ADC2_CH1, FSPICLK, FSPIIO6, SUBSPICLK 19 13 I/O/T RTC_GPIO13, GPIO13, TOUCH13, ADC2_CH2, FSPIQ, FSPIIO7, SUBSPIQ 20 14 I/O/T RTC_GPIO14, GPIO14, TOUCH14, ADC2_CH3, FSPIWP, FSPIDQS, SUBSPIWP 21 5V P 5 V power supply 22 G G Ground === J3 ^^^ === No.

Name Type Function === 1 G G Ground 2 TX I/O/T U0TXD, GPIO43, CLK_OUT1 3 RX I/O/T U0RXD, GPIO44, CLK_OUT2 4 1 I/O/T RTC_GPIO1, GPIO1, TOUCH1, ADC1_CH0 5 2 I/O/T RTC_GPIO2, GPIO2, TOUCH2, ADC1_CH1 6 42 I/O/T MTMS, GPIO42 7 41 I/O/T MTDI, GPIO41, CLK_OUT1 8 40 I/O/T MTDO, GPIO40, CLK_OUT2 9 39 I/O/T MTCK, GPIO39, CLK_OUT3, SUBSPICS1 10 38 I/O/T GPIO38, FSPIWP, SUBSPIWP 11 37 I/O/T SPIDQS, GPIO37, FSPIQ, SUBSPIQ 12 36 I/O/T SPIIO7, GPIO36, FSPICLK, SUBSPICLK 13 35 I/O/T SPIIO6, GPIO35, FSPID, SUBSPID 14 0 I/O/T RTC_GPIO0, GPIO0 15 45 I/O/T GPIO45 16 48 I/O/T GPIO48, SPICLK_N, SUBSPICLK_N_DIFF, RGB LED 17 47 I/O/T GPIO47, SPICLK_P, SUBSPICLK_P_DIFF 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 G G Ground 22 G G Ground === .

. [#] P: Power supply; I: Input; O: Output; T: High impedance. For description of function names, please refer to `Chip Datasheet `_ (PDF). Pin Layout .. figure:: ../../../_static/ESP32-S3_DevKitC-1_pinlayout.jpg :align: center :scale: 50% :alt: ESP32-S3-DevKitC-1 (click to enlarge) ESP32-S3-DevKitC-1 Pin Layout (click to enlarge) Hardware Revision Details This is the first revision of this board released. Related Documents - `ESP32-S3 Datasheet `_ (PDF) - `ESP32-S3-WROOM-1 & ESP32-S3-WROOM-1U Datasheet `_ (PDF) - `ESP32-S3-WROOM-2 Datasheet `_ (PDF) - `ESP32-S3-DevKitC-1 Schematic `_ (PDF) - `ESP32-S3-DevKitC-1 PCB layout `_ (PDF) - `ESP32-S3-DevKitC-1 Dimensions `_ (PDF) - `ESP32-S3-DevKitC-1 Dimensions source file `_ (DXF) - You can view it with `Autodesk Viewer `_ online For further design documentation for the board, please contact us at `sales@espressif.com `_.

The older version: :doc:`user-guide-devkitc-1-v1.0` This user guide will help you get started with ESP32-S3-DevKitC-1 and will also provide more in-depth information. The ESP32-S3-DevKitC-1 is an entry-level development board equipped with ESP32-S3-WROOM-1, ESP32-S3-WROOM-1U, or ESP32-S3-WROOM-2, a general-purpose Wi-Fi + Bluetooth® Low Energy MCU module that integrates complete Wi-Fi and Bluetooth Low Energy functions. Most of the I/O pins on the module are broken out to the pin headers on both sides of this board for easy interfacing. Developers can either connect peripherals with jumper wires or mount ESP32-S3-DevKitC-1 on a breadboard. .. figure:: ../../../_static/esp32-s3-devkitc-1-v1.1-isometric.png :align: center :alt: ESP32-S3-DevKitC-1 with ESP32-S3-WROOM-1 Module ESP32-S3-DevKitC-1 with ESP32-S3-WROOM-1 Module The document consists of the following major sections: - `Getting started`_: Overview of the board and hardware/software setup instructions to get started.

- `Hardware Reference`_: More detailed information about the board's hardware. - `Hardware Revision Details`_: Revision history, known issues, and links to user guides for previous versions (if any) of the board. - `Related Documents`_: Links to related documentation. Getting Started This section provides a brief introduction of ESP32-S3-DevKitC-1, instructions on how to do the initial hardware setup and how to flash firmware onto it. Description of Components .. _user-guide-s3-devkitc-1-v1.1-board-front: .. figure:: ../../../_static/ESP32-S3-DevKitC-1_v2-annotated-photo.png :align: center :alt: ESP32-S3-DevKitC-1 - front ESP32-S3-DevKitC-1 - front The key components of the board are described in a counter-clockwise direction. .. list-table:: :widths: 30 70 :header-rows: 1 - Description - ESP32-S3-WROOM-1, ESP32-S3-WROOM-1U, and ESP32-S3-WROOM-2 are powerful, generic Wi-Fi + Bluetooth Low Energy MCU modules that have a rich set of peripherals. They provide acceleration for neural network computing and signal processing workloads.

ESP32-S3-WROOM-1 and ESP32-S3-WROOM-2 comes with a PCB antenna. ESP32-S3-WROOM-1U comes with an external antenna connector. - Power regulator that converts a 5 V supply into a 3.3 V output. - All available GPIO pins (except for the SPI bus for flash) are broken out to the pin headers on the board for easy interfacing and programming. For details, please see :ref:`user-guide-s3-devkitc-1-v1.1-header-blocks`. - A Micro-USB port used for power supply to the board, for flashing applications to the chip, as well as for communication with the chip via the on-board USB-to-UART bridge. - Download button. Holding down **Boot** and then pressing **Reset** initiates Firmware Download mode for downloading firmware through the serial port. - Press this button to restart the system. - ESP32-S3 full-speed USB OTG interface, compliant with the USB 1.1 specification. The interface is used for power supply to the board, for flashing applications to the chip, for communication with the chip using USB 1.

1 protocols, as well as for JTAG debugging. - Single USB-to-UART bridge chip provides transfer rates up to 3 Mbps. - Addressable RGB LED, driven by GPIO38. - Turns on when the USB power is connected to the board. .. note:: For boards with Octal SPI flash/PSRAM memory embedded ESP32-S3-WROOM-1/1U modules, and boards with ESP32-S3-WROOM-2 modules, the pins GPIO35, GPIO36 and GPIO37 are used for the internal communication between ESP32-S3 and SPI flash/PSRAM memory, thus not available for external use. Start Application Development Before powering up your board, please make sure that it is in good condition with no obvious signs of damage. Required Hardware - ESP32-S3-DevKitC-1 - 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. Hardware Setup Connect the board with the computer using **USB-to-UART Port** or **ESP32-S3 USB Port**.

In subsequent steps, **USB-to-UART Port** will be used by default. 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 onto your board. Contents and Packaging Ordering Information The development board has a variety of variants to choose from, as shown in the table below. .. list-table:: :widths: 28 29 19 17 15 :header-rows: 1 - Module Integrated - Flash - PSRAM - SPI Voltage - ESP32-S3-WROOM-1-N8 - 8 MB QD - — - 3.3 V - ESP32-S3-WROOM-1-N8R2 - 8 MB QD - 2 MB QD - 3.3 V - ESP32-S3-WROOM-1-N8R8 - 8 MB QD - 8 MB OT - 3.3 V - ESP32-S3-WROOM-2-N16R8V - 16 MB OT - 8 MB OT - 1.8 V - ESP32-S3-WROOM-2-N32R8V - 32 MB OT - 8 MB OT - 1.8 V - ESP32-S3-WROOM-1U-N8 - 8 MB QD - — - 3.3 V - ESP32-S3-WROOM-1U-N8R2 - 8 MB QD - 2 MB QD - 3.

3 V - ESP32-S3-WROOM-1U-N8R8 - 8 MB QD - 8 MB OT - 3.3 V .. note:: In the table above, QD stands for Quad SPI and OT stands for Octal SPI. Retail Orders If you order a few samples, each board 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/contact-us/get-samples. Wholesale Orders If you order in bulk, the boards come in large cardboard boxes. For wholesale orders, please go to https://www.espressif.com/en/contact-us/sales-questions. Hardware Reference Block Diagram The block diagram below shows the components of ESP32-S3-DevKitC-1 and their interconnections. .. figure:: ../../../_static/ESP32-S3-DevKitC-1_v2-SystemBlock.png :align: center :scale: 70% :alt: ESP32-S3-DevKitC-1 (click to enlarge) ESP32-S3-DevKitC-1 (click to enlarge) Power Supply Options There are three mutually exclusive ways to provide power to the board: - USB-to-UART Port and ESP32-S3 USB Port (either one or both), default power supply (recommended) - 5V and G (GND) pins - 3V3 and G (GND) pins .

. _user-guide-s3-devkitc-1-v1.1-header-blocks: Header Block The two tables below provide the **Name** and **Function** of the pins on both sides of the board (J1 and J3). The pin names are shown in :ref:`user-guide-s3-devkitc-1-v1.1-board-front`. The numbering is the same as in the `Board Schematic `_ (PDF). J1 ^^^ === No. Name Type [#]_ Function === 1 3V3 P 3.3 V power supply 2 3V3 P 3.3 V power supply 3 RST I EN 4 4 I/O/T RTC_GPIO4, GPIO4, TOUCH4, ADC1_CH3 5 5 I/O/T RTC_GPIO5, GPIO5, TOUCH5, ADC1_CH4 6 6 I/O/T RTC_GPIO6, GPIO6, TOUCH6, ADC1_CH5 7 7 I/O/T RTC_GPIO7, GPIO7, TOUCH7, ADC1_CH6 8 15 I/O/T RTC_GPIO15, GPIO15, U0RTS, ADC2_CH4, XTAL_32K_P 9 16 I/O/T RTC_GPIO16, GPIO16, U0CTS, ADC2_CH5, XTAL_32K_N 10 17 I/O/T RTC_GPIO17, GPIO17, U1TXD, ADC2_CH6 11 18 I/O/T RTC_GPIO18, GPIO18, U1RXD, ADC2_CH7, CLK_OUT3 12 8 I/O/T RTC_GPIO8, GPIO8, TOUCH8, ADC1_CH7, SUBSPICS1 13 3 I/O/T RTC_GPIO3, GPIO3, TOUCH3, ADC1_CH2 14 46 I/O/T GPIO46 15 9 I/O/T RTC_GPIO9, GPIO9, TOUCH9, ADC1_CH8, FSPIHD, SUBSPIHD 16 10 I/O/T RTC_GPIO10, GPIO10, TOUCH10, ADC1_CH9, FSPICS0, FSPIIO4, SUBSPICS0 17 11 I/O/T RTC_GPIO11, GPIO11, TOUCH11, ADC2_CH0, FSPID, FSPIIO5, SUBSPID 18 12 I/O/T RTC_GPIO12, GPIO12, TOUCH12, ADC2_CH1, FSPICLK, FSPIIO6, SUBSPICLK 19 13 I/O/T RTC_GPIO13, GPIO13, TOUCH13, ADC2_CH2, FSPIQ, FSPIIO7, SUBSPIQ 20 14 I/O/T RTC_GPIO14, GPIO14, TOUCH14, ADC2_CH3, FSPIWP, FSPIDQS, SUBSPIWP 21 5V P 5 V power supply 22 G G Ground === J3 ^^^ === No.

Name Type Function === 1 G G Ground 2 TX I/O/T U0TXD, GPIO43, CLK_OUT1 3 RX I/O/T U0RXD, GPIO44, CLK_OUT2 4 1 I/O/T RTC_GPIO1, GPIO1, TOUCH1, ADC1_CH0 5 2 I/O/T RTC_GPIO2, GPIO2, TOUCH2, ADC1_CH1 6 42 I/O/T MTMS, GPIO42 7 41 I/O/T MTDI, GPIO41, CLK_OUT1 8 40 I/O/T MTDO, GPIO40, CLK_OUT2 9 39 I/O/T MTCK, GPIO39, CLK_OUT3, SUBSPICS1 10 38 I/O/T GPIO38, FSPIWP, SUBSPIWP, RGB LED 11 37 I/O/T SPIDQS, GPIO37, FSPIQ, SUBSPIQ 12 36 I/O/T SPIIO7, GPIO36, FSPICLK, SUBSPICLK 13 35 I/O/T SPIIO6, GPIO35, FSPID, SUBSPID 14 0 I/O/T RTC_GPIO0, GPIO0 15 45 I/O/T GPIO45 16 48 I/O/T GPIO48, SPICLK_N, SUBSPICLK_N_DIFF 17 47 I/O/T GPIO47, SPICLK_P, SUBSPICLK_P_DIFF 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 G G Ground 22 G G Ground === .

. [#] P: Power supply; I: Input; O: Output; T: High impedance. For description of function names, please refer to `ESP32-S3 Series Datasheet `_ (PDF). Pin Layout .. figure:: ../../../_static/ESP32-S3_DevKitC-1_pinlayout_v1.1.jpg :align: center :scale: 50% :alt: ESP32-S3-DevKitC-1 (click to enlarge) ESP32-S3-DevKitC-1 Pin Layout (click to enlarge) Hardware Revision Details :doc:`Initial release ` .. note:: Both the initial and v1.1 versions of ESP32-S3-DevKitC-1 are available on the market. The main difference lies in the GPIO assignment for the RGB LED: the initial version uses GPIO48, whereas v1.1 uses GPIO38. Related Documents - `ESP32-S3 Datasheet `_ (PDF) - `ESP32-S3-WROOM-1 & ESP32-S3-WROOM-1U Datasheet `_ (PDF) - `ESP32-S3-WROOM-2 Datasheet `_ (PDF) - `ESP32-S3-DevKitC-1 Schematic `_ (PDF) - `ESP32-S3-DevKitC-1 PCB layout `_ (PDF) - `ESP32-S3-DevKitC-1 Dimensions `_ (PDF) - `ESP32-S3-DevKitC-1 Dimensions source file `_ (DXF) - You can view it with `Autodesk Viewer `_ online For further design documentation for the board, please contact us at `sales@espressif.

com `_. .. toctree:: :hidden: user-guide-devkitc-1-v1.0

This user guide provides information on the ESP-LyraT-8311A extension board. This board cannot be bought separately and is usually sold together with other Espressif development boards (e.g., ESP32-S2-Kaluga-1), which will be referred to as *main boards* below. Currently, ESP-LyraT-8311A v1.3 is sold as part of the :doc:`user-guide-esp32-s2-kaluga-1-kit`. The ESP-LyraT-8311A extends the functionality of your main board by adding sound processing functionality: - Audio playback/recording - Processing of audio signals - Programmable buttons for easy control This extension board can be used in many ways. The applications might include voice user interface, voice control, voice authorization, recording and playback of sound, etc. .. figure:: https://dl.espressif.com/dl/schematics/pictures/esp-lyrat-8311a-v1.3-3d.png :align: center :width: 1934px :height: 1473px :scale: 30% :alt: ESP-LyraT-8311A :figclass: align-center ESP-LyraT-8311A (click to enlarge) The document consists of the following major sections: - `Overview`_: Provides an overview and hardware setup instructions.

- `Hardware reference`_: Provides more detailed information about the ESP-LyraT-8311A's hardware. - `Hardware Revision Details`_: Covers revision history, known issues, and links to user guides for previous versions of the ESP-LyraT-8311A. - `Related Documents`_: Gives links to related documentation. Overview The ESP-LyraT-8311A is mainly designed for audio applications. However, you can use your creativity to come up with any other use cases. Description of Components .. figure:: https://dl.espressif.com/dl/schematics/pictures/esp-lyrat-8311a-v1.3-layout-front.png :align: center :width: 934px :height: 565px :scale: 70% :alt: ESP-LyraT-8311A - front :figclass: align-center ESP-LyraT-8311A - front (click to enlarge) The description of components starts from the top right corner and then goes clockwise. **Reserved** means that the functionality is available, but the current version of the kit does not use it. .. list-table:: :widths: 30 70 :header-rows: 1 - Description - Male Extension Header on the flip side is for mounting onto main board's Extension Header; Female Extension Header is for mounting other boards that have a Male Extension Header - This board has six programmable buttons - Supports Electret and MEMS microphones; this extension board is supplied with an electret microphone - 6.

3 mm (1/8") stereo headphone connector - Connect an external speaker to the 2-pin connector - 3 W Audio signal amplifier for the external speaker - (Reserved) FPC connector for external Mic-Matrix (microphone boards) - (Reserved) high-performance ADC/ES7243: 1 channel for microphone, 1 channel for acoustic echo cancellation (AEC) function - ES8311 audio ADC and DAC; it can convert the analog signal picked up by the microphone or convert digital signal to play it back through a speaker or headphones Start Application Development Before powering up your ESP-LyraT-8311A, please make sure that it is in good condition with no obvious signs of damage. Required Hardware - Board with a female Extension Header (e.g., ESP32-S2-Kaluga-1) - ESP-LyraT-8311A extension board - Four mounting bolts (for stable mounting) - Computer running Windows, Linux, or macOS Hardware Setup To mount your ESP-LyraT-8311A onto the board with a female Extension Header: Software Setup Depending on your application, see: Hardware Reference Block Diagram A block diagram below shows the components of ESP-LyraT-8311A and their interconnections.

.. figure:: https://dl.espressif.com/dl/schematics/pictures/esp-lyrat-8311a-v1.3-block-diagram.png :align: center :alt: ESP-LyraT-8311A block diagram :figclass: align-center ESP-LyraT-8311A block diagram Hardware Revision Details ESP-LyraT-8311A v1.3 ESP-LyraT-8311A v1.2 :doc:`Initial release ` Related Documents - `ESP-LyraT-8311A Schematic `_ (PDF) - `ESP-LyraT-8311A PCB Layout `_ (PDF) For other design documentation for the board, please contact us at sales@espressif.com.

This user guide provides information on the ESP-LyraT-8311A extension board. This board cannot be bought separately and is usually sold together with other Espressif development boards (e.g., ESP32-S2-Kaluga-1), which will be referred to as *main boards* below. Currently, ESP-LyraT-8311A v1.2 is sold as part of the :doc:`user-guide-esp32-s2-kaluga-1-kit-v1.2`. The ESP-LyraT-8311A extends the functionality of your main board by adding sound processing functionality: - Audio playback/recording - Processing of audio signals - Programmable buttons for easy control This extension board can be used in many ways. The applications might include voice user interface, voice control, voice authorization, recording and playback of sound, etc. .. figure:: https://dl.espressif.com/dl/schematics/pictures/esp-lyrat-8311a-v1.2-3d.png :align: center :width: 2545px :height: 1786px :scale: 30% :alt: ESP-LyraT-8311A :figclass: align-center ESP-LyraT-8311A (click to enlarge) The document consists of the following major sections: - `Overview`_: Provides an overview and hardware setup instructions.

- `Hardware reference`_: Provides more detailed information about the ESP-LyraT-8311A's hardware. - `Hardware Revision Details`_: Covers revision history, known issues, and links to user guides for previous versions of the ESP-LyraT-8311A. - `Related Documents`_: Gives links to related documentation. Overview The ESP-LyraT-8311A is mainly designed for audio applications. However, you can use your creativity to come up with any other use cases. Description of Components .. figure:: https://dl.espressif.com/dl/schematics/pictures/esp-lyrat-8311a-v1.2-layout-front.png :align: center :width: 934px :height: 565px :scale: 70% :alt: ESP-LyraT-8311A - front :figclass: align-center ESP-LyraT-8311A - front (click to enlarge) The description of components starts from the top right corner and then goes clockwise. **Reserved** means that the functionality is available, but the current version of the kit does not use it. .. list-table:: :widths: 30 70 :header-rows: 1 - Description - Male Extension Header on the flip side is for mounting onto main board's Extension Header; Female Extension Header is for mounting other boards that have a Male Extension Header - This board has six programmable buttons - Supports Electret and MEMS microphones; this extension board is supplied with an electret microphone - 6.

3 mm (1/8") stereo headphone connector - Connect an external speaker to the 2-pin connector - 3 W Audio signal amplifier for the external speaker - (Reserved) FPC connector for external Mic-Matrix (microphone boards) - (Reserved) high-performance ADC/ES7243: 1 channel for microphone, 1 channel for acoustic echo cancellation (AEC) function - ES8311 audio ADC and DAC; it can convert the analog signal picked up by the microphone or convert digital signal to play it back through a speaker or headphones Start Application Development Before powering up your ESP-LyraT-8311A, please make sure that it is in good condition with no obvious signs of damage. Required Hardware - Board with a female Extension Header (e.g., ESP32-S2-Kaluga-1) - ESP-LyraT-8311A extension board - Four mounting bolts (for stable mounting) - Computer running Windows, Linux, or macOS Hardware Setup To mount your ESP-LyraT-8311A onto the board with a female Extension Header: Software Setup Depending on your application, see: Hardware Reference Block Diagram A block diagram below shows the components of ESP-LyraT-8311A and their interconnections.

.. figure:: https://dl.espressif.com/dl/schematics/pictures/esp-lyrat-8311a-v1.2-block-diagram.png :align: center :alt: ESP-LyraT-8311A block diagram :figclass: align-center ESP-LyraT-8311A block diagram Hardware Revision Details No previous versions available. Related Documents - `ESP-LyraT-8311A Schematic `_ (PDF) - `ESP-LyraT-8311A PCB Layout `_ (PDF) For other design documentation for the board, please contact us at sales@espressif.com.

Older version: :doc:`user-guide-esp32-s2-kaluga-1-kit-v1.2` The ESP32-S2-Kaluga-1 kit v1.3 is a development kit by Espressif that is mainly created to: - Demonstrate the ESP32-S2's human-computer interaction functionalities - Provide the users with the tools for development of human-computer interaction applications based on the ESP32-S2 There are many ways of how the ESP32-S2's abundant functionalities can be used. For starters, the possible use cases may include: - **Smart home**: From simplest smart lighting, smart door locks, smart sockets, to video streaming devices, security cameras, OTT devices, and home appliances - **Battery-powered equipment**: Wi-Fi mesh sensor networks, Wi-Fi-networked toys, wearable devices, health management equipment - **Industrial automation equipment**: Wireless control and robot technology, intelligent lighting, HVAC control equipment, etc. - **Retail and catering industry**: POS machines and service robots .. Image of v1.2 is used as there are no visual changes .

. figure:: https://dl.espressif.com/dl/schematics/pictures/esp32-s2-kaluga-1-kit-v1.0-3d.png :align: center :width: 3452px :height: 1590px :scale: 20% :alt: ESP32-S2-Kaluga-1-Kit-Assembly :figclass: align-center ESP32-S2-Kaluga-1-Kit Overview (click to enlarge) The ESP32-S2-Kaluga-1 kit consists of the following boards: - Main board: *ESP32-S2-Kaluga-1* - Extension boards: - :doc:`user-guide-esp-lyrat-8311a_v1.3` - audio player - :doc:`user-guide-esp-lyrap-toucha-v1.1` - touch panel - :doc:`user-guide-esp-lyrap-lcd32-v1.2` - 3.2" LCD screen - :doc:`user-guide-esp-lyrap-cam-v1.1` - camera board Due to the presence of multiplexed pins on ESP32-S2, certain extension board combinations have limited compatibility. For more details, please see :ref:`user-guide-esp32-s2-kaluga-1-kit-ext-board-compatibility`. 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.

This guide covers: - `Getting Started`_: Provides an overview of the ESP32-S2-Kaluga-1 and hardware/software setup instructions to get started. - `Hardware reference`_: Provides more detailed information about the ESP32-S2-Kaluga-1's hardware. - `Hardware Revision Details`_: Covers revision history, known issues, and links to user guides for previous versions of the ESP32-S2-Kaluga-1. - `Related Documents`_: Gives links to related documentation. Getting Started 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. Overview 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.

The ESP32-S2-Kaluga-1 board has connectors for boards with: - Extension header (ESP-LyraT-8311A, ESP-LyraP-LCD32) - Camera header (ESP-LyraP-CAM) - Touch FPC coneector (ESP-LyraP-TouchA) - LCD FPC connector (no official extension boards yet) - I2C FPC connector (no official extension boards yet) .. figure:: https://dl.espressif.com/dl/schematics/pictures/esp32s2-kaluga-1-v1.3-3d.png :align: center :width: 3089px :height: 2335px :scale: 25% :alt: ESP32-S2-Kaluga-1 :figclass: align-center ESP32-S2-Kaluga-1 (click to enlarge) All the four extension boards are specially desgined to support the following features: Description of Components .. figure:: https://dl.espressif.com/dl/schematics/pictures/esp32-s2-kaluga-1-v1.3-layout-front.png :align: center :width: 934px :height: 645px :scale: 70% :alt: ESP32-S2-Kaluga-1 - front :figclass: align-center ESP32-S2-Kaluga-1 - front (click to enlarge) .. figure:: https://dl.espressif.

com/dl/schematics/pictures/esp32-s2-kaluga-1-v1.3-layout-back.png :align: center :width: 934px :height: 600px :scale: 70% :alt: ESP32-S2-Kaluga-1 - back :figclass: align-center ESP32-S2-Kaluga-1 - back (click to enlarge) The description of components starts from the ESP32-S2 module on the left side and then goes clockwise. **Reserved** means that the functionality is available, but the current version of the kit does not use it. .. list-table:: :widths: 30 70 :header-rows: 1 - Description - Module integrating the ESP32-S2 chip that provides Wi-Fi connectivity, data processing power, and flexible data storage. - (Reserved) Connect to a 4.3" LCD extension board using the FPC cable. - (Reserved) Connection for Espressif's download device (ESP-Prog) to flash ESP32-S2 system. - Switch to ON to enable connection between ESP32-S2 and FT2232; JTAG debugging will then be possible using USB-UART/JTAG Port. See also :doc:`../../api-guides/jtag-debugging/index`.

- Some GPIO pins of the ESP32-S2-WROVER module are broken out to this header, see labels on the board. - FT2232 adapter board allowing for communication over USB port using UART/JTAG protocols. - Mount a camera extension board here (e.g., ESP-LyraP-CAM). - Mount the extension boards having such connectors here. - Press this button to restart the system - Holding down **Boot** and then pressing **Reset** initiates Firmware Download mode for downloading firmware through the serial port. - Communication interface (UART or JTAG) between a PC and the ESP32-S2 module. - Power supply for the board. - Connect an external battery to the 2-pin battery connector. - Turns on when the USB or an external power supply is connected to the board. - Switch to ON to power the system. - To have access to the RGB LED, place a jumper onto the pins. - Programmable RGB LED and controlled by GPIO45. Before using it, you need to put RGB Jumper ON.

- Regulator converts 5 V to 3.3 V. - (Reserved) Connect to other I2C extension boards using the FPC cable. - Some GPIO pins of the ESP32-S2-WROVER module are broken out to this header, see labels on the board. - Connect the ESP-LyraP-TouchA extension board using the FPC cable. - 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. - Connect a 3.2" LCD extension board (e.g., ESP-LyraP-LCD32) using the FPC cable. Start Application Development Before powering up your ESP32-S2-Kaluga-1, please make sure that it is in good condition with no obvious signs of damage. Required Hardware - ESP32-S2-Kaluga-1 - Two USB 2.0 cables (Standard-A to Micro-B) - For power supply - For UART/JTAG communication - Computer running Windows, Linux, or macOS - Any extension boards of your choice Hardware Setup .. _user-guide-esp32-s2-kaluga-1-kit-software-setup: 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. The programming guide and application examples for your ESP32-S2-Kaluga-1 kit can be found in `esp-dev-kits `_ repository on GitHub. A Board Support Package can be found in `IDF Component Registry `_. Contents and Packaging Retail Orders If you order one or several samples of the kit, each ESP32-S2-Kaluga-1 development kit comes in an individual package. .. figure:: https://dl.espressif.com/dl/schematics/pictures/esp32s2-kaluga-1-kit-v1.3-package-3d.png :align: center :alt: ESP32-S2-Kaluga-1 - package :figclass: align-center ESP32-S2-Kaluga-1 - package The contents are as follows: - Main Board - ESP32-S2-Kaluga-1 - Extension Boards: - ESP-LyraT-8311A - ESP-LyraP-CAM - ESP-LyraP-TouchA - ESP-LyraP-LCD32 - Connectors - 20-pin FPC cable (to connect ESP32-S2-Kaluga-1 to ESP-LyraP-TouchA) - Fasteners - Mounting bolts (x8) - Screws (x4) - Nuts (x4) For retail orders, please go to https://www.

espressif.com/en/contact-us/get-samples. Wholesale Orders If you order in bulk, the boards come in large cardboard boxes. For wholesale orders, please go to https://www.espressif.com/en/contact-us/sales-questions. Hardware Reference Block Diagram .. Image of v1.2 is used as there are no visual changes A block diagram below shows the components of the ESP32-S2-Kaluga-1 and their interconnections. .. figure:: https://dl.espressif.com/dl/schematics/pictures/esp32-s2-kaluga-1-v1.2-block-diagram.png :align: center :alt: ESP32-S2-Kaluga-1 block diagram :figclass: align-center ESP32-S2-Kaluga-1 block diagram Power Supply Options There are four ways to provide power to the board: - Micro USB port, default power supply - External battery via the 2-pin battery connector - 5V and GND header pins - 3V3 and GND header pins .. _user-guide-esp32-s2-kaluga-1-kit-ext-board-compatibility: Compatibility of Extension Boards If you want to use more than one extension board at the same time, please check the table given below.

.. list-table:: :widths: 20 15 33 32 :header-rows: 1 - HW Conflict - Limitations - Solution - I2S Controller - ESP32-S2 has only one I2S interface. But both extension boards require connection via the ESP32-S2's I2S interface (LyraT-8311A in Standard mode, ESP-LyraP-CAM in Camera mode). - Utilize time division multiple access, or use a different audio module that can be connected via other GPIOs or DAC. - IO11, IO6 - Touch actions cannot be triggered because of the multiplexed pin IO11. ESP-LyraP-LCD32 will not be affected because its BLCT pin will be disconnected from IO6. - Do not initialize IO11 (NETWORK) for your ESP-LyraP-TouchA, or configure the BLCT pin to `-1` (= do not use BLCT) for your ESP-LyraP-LCD32. - IO6 - BLCT pin of ESP32-S2-Kaluga-1 will be disconnected from IO6. - Configure the BK pin to `-1` (= do not use BLCT) for your ESP-LyraP-LCD32. - Pin BT_ADC on ESP-LyraT-8311A - This pin is required for initialization of the six button on ESP-LyraT-8311A.

At the same time, ESP-LyraP-TouchA needs this pin for its touch actions. - If you plan to use buttons on ESP-LyraT-8311A, do not initialize pin IO6 (PHOTO) for your ESP-LyraP-TouchA. - IO1, IO2, IO3 - Cannot be used simultaneously because of the mentioned multiplexed pins. - For ESP-LyraP-TouchA, do not initialize IO1 (VOL_UP), IO2 (PLAY), and IO3 (VOL_DOWN). - IO1, IO2, IO3, IO11 - Conflicts on the mentioned multiplexed pins. - For ESP-LyraP-TouchA, do not initialize IO1 (VOL_UP), IO2 (PLAY), IO3 (VOL_DOWN), and IO11 (NETWORK). - IO6, IO11 - If ESP-LyraT-8311A's pin BT_ADC is used to initialize the board's six buttons, IO6 and IO11 will not be available for the other boards. - Do not initialize IO11 (NETWORK) for your ESP-LyraP-TouchA. Also, if you need to use BT_ADC, do not initialize IO6 (PHOTO). Also, all extension boards and the :ref:`JTAG interface ` share the same pins IO39, IO40, IO41 and IO42. For this reason, the following may disturb the JTAG operation: Hardware Revision Details ESP32-S2-Kaluga-1 Kit v1.

3 ESP32-S2-Kaluga-1 Kit v1.2 :doc:`Initial release ` Related Documents .. toctree:: :hidden: user-guide-esp32-s2-kaluga-1-kit-v1.2.rst user-guide-esp-lyrap-cam-v1.1 user-guide-esp-lyrap-lcd32-v1.2 user-guide-esp-lyrat-8311a_v1.3 - `ESP32-S2-WROVER Datasheet `_ (PDF) - `ESP Product Selector `_ - :doc:`../../api-guides/jtag-debugging/index` - `ESP32-S2-Kaluga-1 Schematic `_ (PDF) - `ESP32-S2-Kaluga-1 PCB Layout `_ (PDF) - `ESP32-S2-Kaluga-1 Pin Mapping `_ (Excel) For other design documentation for the board, please contact us at sales@espressif.com.

This user guide provides information on the ESP-LyraP-TouchA extension board. This board cannot be bought separately and is usually sold together with other Espressif development boards (e.g., ESP32-S2-Kaluga-1), which will be referred to as *main boards* below. Currently, ESP-LyraP-TouchA v1.1 is sold as part of the following kits: The ESP-LyraP-TouchA extends the functionality of your main board by adding touch buttons. .. figure:: https://dl.espressif.com/dl/schematics/pictures/esp-lyrap-toucha-v1.1-3d.png :align: center :alt: ESP-LyraP-TouchA :figclass: align-center ESP-LyraP-TouchA The document consists of the following major sections: - `Overview`_: Provides an overview and hardware setup instructions. - `Hardware reference`_: Provides more detailed information about the ESP-LyraP-TouchA's hardware. - `Hardware Revision Details`_: Covers revision history, known issues, and links to user guides for previous versions of the ESP-LyraP-TouchA. - `Related Documents`_: Gives links to related documentation.

Overview The ESP-LyraP-TouchA has six touch buttons and is mainly designed for audio applications. However, the touch buttons can also be used for any other purposes. Description of Components .. figure:: https://dl.espressif.com/dl/schematics/pictures/esp-lyrap-toucha-v1.1-layout-front.png :align: center :alt: ESP-LyraP-TouchA :figclass: align-center ESP-LyraP-TouchA .. list-table:: :widths: 30 70 :header-rows: 1 - Description - Connect to main board's Touch FPC Connector. - Capacitive touch electrode. - Connected to a touch sensor, the guard ring triggers an interrupt if wet (Water rejection). It indicates that the sensor array is also wet and most (if not all) touchpads are unusable due to the false detection of touches. After receiving this interrupt, the user might consider disabling all the touch sensors via software. Start Application Development Before powering up your ESP-LyraP-TouchA, please make sure that it is in good condition with no obvious signs of damage.

Required Hardware - Board with a Touch FPC connector (e.g., ESP32-S2-Kaluga-1) - ESP-LyraP-TouchA extension board - FPC cable - Computer running Windows, Linux, or macOS Hardware Setup Connect the two FPC connectors with the FPC cable. Software Setup See Section :ref:`user-guide-esp32-s2-kaluga-1-kit-software-setup` of the ESP32-S2-Kaluga-1 kit user guide. Hardware Reference Block Diagram A block diagram below shows the components of ESP-LyraP-TouchA and their interconnections. .. figure:: https://dl.espressif.com/dl/schematics/pictures/esp-lyrap-toucha-v1.1-block-diagram.png :align: center :alt: ESP-LyraP-TouchA-v1.1 block diagram :figclass: align-center ESP-LyraP-TouchA-v1.1 block diagram Hardware Revision Details No previous versions available. Related Documents - `ESP-LyraP-TouchA Schematic `_ (PDF) - `ESP-LyraP-TouchA PCB Layout `_ (PDF) For other design documentation for the board, please contact us at sales@espressif.com.

This user guide provides information on Espressif's small-sized development board ESP32-S2-DevKitM-1. ESP32-S2-DevKitM-1 is entry-level development board. 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 on a breadboard. +++ | |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 and hardware/software setup instructions to get started. - `Hardware reference`_: Provides more detailed information about the ESP32-S2-DevKitM-1's hardware. - `Hardware Revision Details`_: Revision history, known issues, and links to user guides for previous versions (if any) of ESP32-S2-DevKitM-1.

- `Related Documents`_: Gives links to related documentation. Getting Started This section describes how to get started with ESP32-S2-DevKitM-1. It begins with a few introductory sections about the ESP32-S2-DevKitM-1, then Section `Start Application Development`_ provides instructions on how to get the ESP32-S2-DevKitM-1 ready and flash firmware into it. Contents and Packaging .. _user-guide-s2-devkitm-1-v1-ordering-info: Ordering Information The development board has a variety of variants to choose from, as shown in the table below. .. list-table:: :header-rows: 1 :widths: 41 24 9 8 18 - On-board Module [#]_ - Flash - PSRAM - Antenna - ESP32-S2-MINI-2 (Recommended) - 4 MB - 2 MB - PCB on-board antenna - ESP32-S2-MINI-2U (Recommended) - 4 MB - 2 MB - External antenna connector - ESP32-S2-MINI-1 - 4 MB - --- - PCB on-board antenna - ESP32-S2-MINI-1U - 4 MB - --- - External antenna connector - ESP32-S2-MINI-1 - 4 MB - 2 MB - PCB on-board antenna - ESP32-S2-MINI-1U - 4 MB - 2 MB - External antenna connector .

. [#] The ESP32-S2-MINI-2 and ESP32-S2-MINI-2U modules use chip revision v1.0, and the rest use chip revision v0.0. For more information about chip revisions, please refer to `ESP32-S2 Series SoC Errata`_. Retail Orders If you order a few samples, each ESP32-S2-DevKitM-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/contact-us/get-samples. Wholesale Orders If you order in bulk, the boards come in large cardboard boxes. For wholesale orders, please go to https://www.espressif.com/en/contact-us/sales-questions. 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 - Description - ESP32-S2-MINI series modules with an on-board PCB antenna or a connector for an external antenna. This series of modules, known for its small size, have a flash and/or a PSRAM integrated in the chip package. For more information, please refer to :ref:`user-guide-s2-devkitm-1-v1-ordering-info`. - 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`. - Turns on when the USB power is connected to the board. - Single USB-UART bridge chip provides transfer rates up to 3 Mbps. - Reset button. - USB interface. Power supply for the board as well as the communication interface between a computer and the ESP32-S2FH4 chip. - Download button. Holding down **Boot** and then pressing **Reset** initiates Firmware Download mode for downloading firmware through the serial port.

- Addressable RGB LED, driven by GPIO18. - Power regulator that converts a 5 V supply into a 3.3 V output. - On **ESP32-S2-MINI-2U** and **ESP32-S2-MINI-1U** module only. For connector dimensions, please refer to Section External Antenna Connector Dimensions in module datasheet. Start Application Development Before powering up your ESP32-S2-DevKitM-1, please make sure that it is in good condition with no obvious signs of damage. Required Hardware - ESP32-S2-DevKitM-1 - 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. .. 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 (click to enlarge) :figclass: align-center ESP32-S2-DevKitM-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 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 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 (click to enlarge) :figclass: align-center ESP32-S2-DevKitM-1 Pin Layout (click to enlarge) Hardware Revision Details This is the first revision of this board released. Related Documents For other design documentation for the board, please contact us at `sales@espressif.com `_. .. _NRND: https://www.espressif.com/en/products/longevity-commitment?id=nrnd .. _ESP32-S2 Series Chip Revision v1.0 Datasheet: https://www.espressif.com/sites/default/files/documentation/esp32-s2-v1.0_datasheet_en.pdf .. _ESP32-S2 Series SoC Errata: https://espressif.com/sites/default/files/documentation/esp32-s2_errata_en.pdf

This user guide provides information on ESP32-S2-Saola-1, a small-sized `ESP32-S2 Datasheet`_ 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. - `Hardware Revision Details`_: Revision history, known issues, and links to user guides for previous versions (if any) of ESP32-S2-Saola-1. - `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/contact-us/get-samples. Wholesale Orders If you order in bulk, the boards come in large cardboard boxes. For wholesale orders, please go to https://www.espressif.com/en/contact-us/sales-questions. Description of Components .

. _user-guide-saola-1-v1.2-board-front: .. 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 The key components of the board are described in a clockwise direction. .. list-table:: :widths: 30 70 :header-rows: 1 - Description - 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. - 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. - Turns on when the USB power is connected to the board. - Single USB-UART bridge chip provides transfer rates up to 3 Mbps. - Reset button. - USB interface. Power supply for the board as well as the communication interface between a computer and the ESP32-S2 chip.

- Download button. Holding down **Boot** and then pressing **Reset** initiates Firmware Download mode for downloading firmware through the serial port. - 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 .. 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-Saola-1. .. note:: ESP32-S2 series of chips 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 pin headers - 3V3 and GND pin headers It is recommended to use the first option: Micro-USB Port. Header Block The two tables below provide the **Name** and **Function** of the pin headers on both sides of the board (J2 and J3). The pin header names are shown in :ref:`user-guide-saola-1-v1.2-board-front`. The numbering is the same as in the `ESP32-S2-Saola-1 Schematics`_ (PDF). J2 ^^^ === No. Name Type [#]_ Function === 1 3V3 P 3.3 V power supply 2 IO0 I/O GPIO0, Boot 3 IO1 I/O GPIO1, ADC1_CH0, TOUCH_CH1 4 IO2 I/O GPIO2, ADC1_CH1, TOUCH_CH2 5 IO3 I/O GPIO3, ADC1_CH2, TOUCH_CH3 6 IO4 I/O GPIO4, ADC1_CH3, TOUCH_CH4 7 IO5 I/O GPIO5, ADC1_CH4, TOUCH_CH5 8 IO6 I/O GPIO6, ADC1_CH5, TOUCH_CH6 9 IO7 I/O GPIO7, ADC1_CH6, TOUCH_CH7 10 IO8 I/O GPIO8, ADC1_CH7, TOUCH_CH8 11 IO9 I/O GPIO9, ADC1_CH8, TOUCH_CH9 12 IO10 I/O GPIO10, ADC1_CH9, TOUCH_CH10 13 IO11 I/O GPIO11, ADC2_CH0, TOUCH_CH11 14 IO12 I/O GPIO12, ADC2_CH1, TOUCH_CH12 15 IO13 I/O GPIO13, ADC2_CH2, TOUCH_CH13 16 IO14 I/O GPIO14, ADC2_CH3, TOUCH_CH14 17 IO15 I/O GPIO15, ADC2_CH4, XTAL_32K_P 18 IO16 I/O GPIO16, ADC2_CH5, XTAL_32K_N 19 IO17 I/O GPIO17, ADC2_CH6, DAC_1 20 5V0 P 5 V power supply 21 GND G Ground === J3 ^^^ === No.

Name Type Function === 1 GND G Ground 2 RST I CHIP_PU, Reset 3 IO46 I GPIO46 4 IO45 I/O GPIO45 5 IO44 I/O GPIO44, U0RXD 6 IO43 I/O GPIO43, U0TXD 7 IO42 I/O GPIO42, MTMS 8 IO41 I/O GPIO41, MTDI 9 IO40 I/O GPIO40, MTDO 10 IO39 I/O GPIO39, MTCK 11 IO38 I/O GPIO38 12 IO37 I/O GPIO37 13 IO36 I/O GPIO36 14 IO35 I/O GPIO35 16 IO34 I/O GPIO34 17 IO33 I/O GPIO33 17 IO26 I/O GPIO26 18 IO21 I/O GPIO21 19 IO20 I/O GPIO20, ADC2_CH9, USB_D+ 20 IO19 I/O GPIO19, ADC2_CH8, USB_D- 21 IO18 I/O GPIO18, ADC2_CH7, DAC_2, RGB LED === .. [#] P: Power supply; I: Input; O: Output; T: High impedance. Pin Layout .. figure:: ../../../_static/esp32-s2_saola1-pinout.jpg :align: center :scale: 45% :alt: ESP32-S2-Saola-1 (click to enlarge) :figclass: align-center ESP32-S2 Saola-1 Pin Layout (click to enlarge) Hardware Revision Details This is the first revision of this board released.

Related Documents For other design documentation for the board, please contact us at `sales@espressif.com `_. .. _ESP32-S2-Saola-1 Schematics: https://dl.espressif.com/dl/schematics/ESP32-S2-SAOLA-1_V1.1_schematics.pdf .. _ESP32-S2-Saola-1 Dimensions: https://dl.espressif.com/dl/schematics/ESP32-S2-Saola-1_V1.2_Dimensions.pdf .. _ESP32-S2 Datasheet: https://www.espressif.com/sites/default/files/documentation/esp32-s2_datasheet_en.pdf .. _ESP32-S2-WROVER and ESP32-S2-WROVER-I Datasheet: https://www.espressif.com/sites/default/files/documentation/esp32-s2-wrover_esp32-s2-wrover-i_datasheet_en.pdf .. _ESP32-S2-WROOM and ESP32-S2-WROOM-I Datasheet: https://www.espressif.com/sites/default/files/documentation/esp32-s2-wroom_esp32-s2-wroom-i_datasheet_en.pdf .. _ESP Product Selector: https://products.espressif.com/#/product-selector?names=

New version available: :doc:`user-guide-esp32-s2-kaluga-1-kit` The ESP32-S2-Kaluga-1 kit v1.2 is a development kit by Espressif that is mainly created to: - Demonstrate the ESP32-S2's human-computer interaction functionalities - Provide the users with the tools for development of human-computer interaction applications based on the ESP32-S2 There are many ways of how the ESP32-S2's abundant functionalities can be used. For starters, the possible use cases may include: - **Smart home**: From simplest smart lighting, smart door locks, smart sockets, to video streaming devices, security cameras, OTT devices, and home appliances - **Battery-powered equipment**: Wi-Fi mesh sensor networks, Wi-Fi-networked toys, wearable devices, health management equipment - **Industrial automation equipment**: Wireless control and robot technology, intelligent lighting, HVAC control equipment, etc. - **Retail and catering industry**: POS machines and service robots .. figure:: https://dl.espressif.

com/dl/schematics/pictures/esp32-s2-kaluga-1-kit-v1.0-3d.png :align: center :width: 3452px :height: 1590px :scale: 20% :alt: ESP32-S2-Kaluga-1-Kit-Assembly :figclass: align-center ESP32-S2-Kaluga-1-Kit Overview (click to enlarge) The ESP32-S2-Kaluga-1 kit consists of the following boards: - Main board: *ESP32-S2-Kaluga-1* - Extension boards: - :doc:`user-guide-esp-lyrat-8311a_v1.2` - audio player - :doc:`user-guide-esp-lyrap-toucha-v1.1` - touch panel - :doc:`user-guide-esp-lyrap-lcd32-v1.1` - 3.2" LCD screen - :doc:`user-guide-esp-lyrap-cam-v1.0` - camera board Due to the presence of multiplexed pins on ESP32-S2, certain extension board combinations have limited compatibility. For more details, please see :ref:`user-guide-esp32-s2-kaluga-1-kit-v1.2-ext-board-compatibility`. 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.

This guide covers: - `Getting Started`_: Provides an overview of the ESP32-S2-Kaluga-1 and hardware/software setup instructions to get started. - `Hardware reference`_: Provides more detailed information about the ESP32-S2-Kaluga-1's hardware. - `Hardware Revision Details`_: Covers revision history, known issues, and links to user guides for previous versions of the ESP32-S2-Kaluga-1. - `Related Documents`_: Gives links to related documentation. Getting Started 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. Overview 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.

The ESP32-S2-Kaluga-1 board has connectors for boards with: - Extension header (ESP-LyraT-8311A, ESP-LyraP-LCD32) - Camera header (ESP-LyraP-CAM) - Touch FPC connector (ESP-LyraP-TouchA) - LCD FPC connector (no official extension boards yet) - I2C FPC connector (no official extension boards yet) .. figure:: https://dl.espressif.com/dl/schematics/pictures/esp32-s2-kaluga-1-v1.2-3d.png :align: center :width: 2631px :height: 1966px :scale: 25% :alt: ESP32-S2-Kaluga-1 :figclass: align-center ESP32-S2-Kaluga-1 (click to enlarge) All the four extension boards are specially desgined to support the following features: Description of Components .. figure:: https://dl.espressif.com/dl/schematics/pictures/esp32-s2-kaluga-1-v1.2-layout-front.png :align: center :width: 934px :height: 645px :scale: 70% :alt: ESP32-S2-Kaluga-1 - front :figclass: align-center ESP32-S2-Kaluga-1 - front (click to enlarge) The description of components starts from the ESP32-S2 module on the left side and then goes clockwise.

**Reserved** means that the functionality is available, but the current version of the kit does not use it. .. list-table:: :widths: 30 70 :header-rows: 1 - Description - Module integrating the ESP32-S2 chip that provides Wi-Fi connectivity, data processing power, and flexible data storage. - (Reserved) Connect to a 4.3" LCD extension board using the FPC cable. - (Reserved) Connection for Espressif's download device (ESP-Prog) to flash ESP32-S2 system. - Switch to ON to enable connection between ESP32-S2 and FT2232; JTAG debugging will then be possible using USB-UART/JTAG Port. See also :doc:`../../api-guides/jtag-debugging/index`. - Some GPIO pins of the ESP32-S2-WROVER module are broken out to this header, see labels on the board. - FT2232 adapter board allowing for communication over USB port using UART/JTAG protocols. - Mount a camera extension board here (e.g., ESP-LyraP-CAM). - Mount the extension boards having such connectors here.

- Press this button to restart the system. - Holding down **Boot** and then pressing **Reset** initiates Firmware Download mode for downloading firmware through the serial port. - Communication interface (UART or JTAG) between a PC and the ESP32-S2 module. - Power supply for the board. - Connect an external battery to the 2-pin battery connector. - Turns on when the USB or an external power supply is connected to the board. - Switch to ON to power the system. - To have access to the RGB LED, place a jumper onto the pins. - Programmable RGB LED and controlled by GPIO45. Before using it, you need to put RGB Jumper ON. - Regulator converts 5 V to 3.3 V. - (Reserved) Connect to other I2C extension boards using the FPC cable. - Some GPIO pins of the ESP32-S2-WROVER module are broken out to this header, see labels on the board. - Connect the ESP-LyraP-TouchA extension board using the FPC cable. - 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.

- Connect a 3.2" LCD extension board (e.g., ESP-LyraP-LCD32) using the FPC cable. Start Application Development Before powering up your ESP32-S2-Kaluga-1, please make sure that it is in good condition with no obvious signs of damage. Required Hardware - ESP32-S2-Kaluga-1 - Two USB 2.0 cables (Standard-A to Micro-B) - For power supply - For UART/JTAG communication - Computer running Windows, Linux, or macOS - Any extension boards of your choice Hardware Setup .. _user-guide-esp32-s2-kaluga-1-kit-v1.2-software-setup: 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. The programming guide and application examples for your ESP32-S2-Kaluga-1 kit can be found in `esp-dev-kits `_ repository on GitHub. Contents and Packaging Retail Orders If you order one or several samples of the kit, each ESP32-S2-Kaluga-1 development kit comes in an individual package containing: - Main Board - ESP32-S2-Kaluga-1 - Extension Boards: - ESP-LyraT-8311A - ESP-LyraP-CAM - ESP-LyraP-TouchA - ESP-LyraP-LCD32 - Connectors - 20-pin FPC cable (to connect ESP32-S2-Kaluga-1 to ESP-LyraP-TouchA) - Fasteners - Mounting bolts (x8) - Screws (x4) - Nuts (x4) For retail orders, please go to https://www.

espressif.com/en/contact-us/get-samples. Wholesale Orders If you order in bulk, the boards come in large cardboard boxes. For wholesale orders, please go to https://www.espressif.com/en/contact-us/sales-questions. Hardware Reference Block Diagram A block diagram below shows the components of the ESP32-S2-Kaluga-1 and their interconnections. .. figure:: https://dl.espressif.com/dl/schematics/pictures/esp32-s2-kaluga-1-v1.2-block-diagram.png :align: center :alt: ESP32-S2-Kaluga-1 block diagram :figclass: align-center ESP32-S2-Kaluga-1 block diagram Power Supply Options There are four ways to provide power to the board: - Micro USB port, default power supply - External battery via the 2-pin battery connector - 5V and GND header pins - 3V3 and GND header pins .. _user-guide-esp32-s2-kaluga-1-kit-v1.2-ext-board-compatibility: Compatibility of Extension Boards If you want to use more than one extension board at the same time, please check the table given below.

.. list-table:: :widths: 20 10 30 40 :header-rows: 1 - HW Conflict - Limitations - Solution - I2S Controller, IO46 - ESP32-S2 has only one I2S interface. But both extension boards require connection via the ESP32-S2's I2S interface (ESP-LyraT-8311A in Standard mode, ESP-LyraP-CAM in Camera mode). If IO46 is used by both extension boards at the same time, ESP-LyraP-CAM experiences interferences when used. - No ready solution for now. - IO11, IO6 - Touch actions cannot be triggered because of the multiplexed pin IO11. ESP-LyraP-LCD32 is also affected because its BK (BLCT) pin is connected to pin IO6. - Do not initialize IO11 (NETWORK) and IO6 (PHOTO) for your ESP-LyraP-TouchA. - IO6 - The two extension boards can be used at the same time. However, since the BK (BLCT) pin of ESP32-S2-Kaluga-1 is connected to IO6, ESP-LyraT-8311A's pin BT_ADC cannot be used and the board's six buttons will not be available. - There is a solution that will allow you to use ESP-LyraT-8311A's pin BT_ADC, but will stop you from controlling the display background brightness with software: on your ESP-LyraP-LCD32 board, remove R39, change R41 to 100 Ohm, switch BLCT_L to on.

- Pin BT_ADC on ESP-LyraT-8311A - The two extension boards can be used at the same time. However, ESP-LyraP-TouchA cannot be triggered if ESP-LyraT-8311A's pin BT_ADC is used to initialize the board's six buttons. - If you plan to use ESP-LyraT-8311A's pin BT_ADC, do not initialize pin IO6 (PHOTO) for your ESP-LyraP-TouchA. - IO1, IO2, IO3 - Cannot be used simultaneously because of the mentioned multiplexed pins. - For ESP-LyraP-TouchA, do not initialize IO1 (VOL_UP), IO2 (PLAY), and IO3 (VOL_DOWN). - IO1, IO2, IO3, IO6, IO11 - Conflicts on the mentioned multiplexed pins. - **Solution 1**: For ESP-LyraP-TouchA, do not initialize IO1 (VOL_UP), IO2 (PLAY), IO3 (VOL_DOWN), IO6 (PHOTO) and IO11 (NETWORK). **Solution 2**: It will allow you to initialize IO6 (PHOTO) properly, but will stop you from controlling the background brightness with software. On your ESP-LyraP-LCD32, remove R39, change R41 to 100 Ohm, switch BLCT_L to on. - IO6, IO11 - IO11 is multiplexed; IO6 is also multiplexed stopping you from using ESP-LyraT-8311A's pin BT_ADC that is needed to initialize the board's six buttons.

- **Solution 1**: For ESP-LyraP-TouchA, do not initialize IO6 (PHOTO) and IO11 (NETWORK). Please note that the six buttons on ESP-LyraT-8311A still cannot be used. **Solution 2**: On your ESP-LyraP-LCD32, remove R39, change R41 to 100 Ohm, switch BLCT_L to on. For your ESP-LyraP-TouchA, do not initialize IO11 (NETWORK). If you want to use the six buttons on your ESP-LyraT-8311A, also do not initialize IO6 (PHOTO). Also, all extension boards and the :ref:`JTAG interface ` share the same pins IO39, IO40, IO41 and IO42. For this reason, the following may disturb the JTAG operation: Known Issues .. list-table:: :widths: 22 24 32 22 :header-rows: 1 - Description - Reason for Failure - Solution - Flashing firmware might be impossible with the extension board connected to the main board. - Incorrect timing sequence is fed to strapping pins IO45 and IO46 when the board is powered on. It stops the board from booting successfully. - While flashing the main board, keep the extension board disconnected.

- Rebooting the board by pressing Reset might not lead to desired results. - Incorrect timing sequence is fed to strapping pins IO45 and IO46 when the board is powered on. It stops the board from booting successfully. - No ready solution for v1.2. This bug is fixed in ESP32-S2-Kaluga-1 V1.3. - Flashing firmware might be impossible with the extension board connected to the main board. - Incorrect timing sequence is fed to strapping pin IO46 when the board is powered on. It stops the board from booting successfully. - While flashing the main board, keep the extension board disconnected. - Rebooting the board by pressing Reset might not lead to desired results. - Incorrect timing sequence is fed to strapping pin IO46 when the board is powered on. It stops the board from booting successfully. - No ready solution for v1.2. This bug is fixed in ESP32-S2-Kaluga-1 V1.3. Hardware Revision Details No previous versions available. Related Documents .

. toctree:: :hidden: user-guide-esp-lyrap-cam-v1.0 user-guide-esp-lyrap-lcd32-v1.1 user-guide-esp-lyrap-toucha-v1.1 user-guide-esp-lyrat-8311a_v1.2 - `ESP32-S2-WROVER Datasheet `_ (PDF) - `ESP Product Selector `_ - :doc:`../../api-guides/jtag-debugging/index` - `ESP32-S2-Kaluga-1 Schematic `_ (PDF) - `ESP32-S2-Kaluga-1 PCB Layout `_ (PDF) - `ESP32-S2-Kaluga-1 Pin Mapping `_ (Excel) For other design documentation for the board, please contact us at sales@espressif.com.

This user guide provides information on the ESP-LyraP-LCD32 extension board. This extension board cannot be bought separately and is usually sold together with other Espressif development boards (e.g., ESP32-S2-Kaluga-1), which will be referred to as *main boards* below. Currently, ESP-LyraP-LCD32 v1.1 is sold as part of the :doc:`user-guide-esp32-s2-kaluga-1-kit-v1.2`. The ESP-LyraP-LCD32 extends the functionality of your main board by adding an LCD graphic display. .. figure:: https://dl.espressif.com/dl/schematics/pictures/esp-lyrap-lcd32-v1.1-3d.png :align: center :width: 2243px :height: 1534px :scale: 30% :alt: ESP-LyraP-LCD32 :figclass: align-center ESP-LyraP-LCD32 (click to enlarge) The document consists of the following major sections: - `Overview`_: Provides an overview and hardware/software setup instructions to get started. - `Hardware reference`_: Provides more detailed information about the ESP-LyraP-LCD32's hardware. - `Hardware Revision Details`_: Covers revision history, known issues, and links to user guides for previous versions of the ESP-LyraP-LCD32.

- `Related Documents`_: Gives links to related documentation. Overview This extension board adds a 3.2" LCD graphic display with the resolution of 320x240. This display is connected to ESP32-S2 over the SPI bus. Description of Components .. figure:: https://dl.espressif.com/dl/schematics/pictures/esp-lyrap-lcd32-v1.1-layout-front.png :align: center :width: 934px :height: 600px :scale: 70% :alt: ESP-LyraP-LCD32 - front :figclass: align-center ESP-LyraP-LCD32 - front (click to enlarge) In the description of components below, **Reserved** means that the functionality is available, but the current version of the kit does not use it. .. list-table:: :widths: 30 70 :header-rows: 1 - Description - Male Extension Header for mounting onto a female Extension Header - This version has a 3.2" 320x240 SPI LCD display module; the display driver/controller is Sitronix ST7789V - No support for touch screens, keep the switches to OFF to make the pins available for other uses - (Reserved) Connect to main board's 3.

2" LCD FPC connector - Switch to ON to set Reset/Backlight_control/CS to default high or low; switch to OFF to make the pins available for other uses Start Application Development Before powering up your ESP-LyraP-LCD32, please make sure that it is in good condition with no obvious signs of damage. Required Hardware - Board with a female Extension Header (e.g., ESP32-S2-Kaluga-1, ESP-LyraT-8311A) - ESP-LyraP-LCD32 extension board - Four mounting bolts (for stable mounting) - Computer running Windows, Linux, or macOS Hardware Setup To mount your ESP-LyraP-LCD32 onto the board with a female Extension Header: Software Setup See Section :ref:`user-guide-esp32-s2-kaluga-1-kit-v1.2-software-setup` of the ESP32-S2-Kaluga-1 kit user guide. Hardware Reference Block Diagram A block diagram below shows the components of the ESP-LyraP-LCD32 and their interconnections. .. figure:: https://dl.espressif.com/dl/schematics/pictures/esp-lyrap-lcd32-v1.1-block-diagram.png :align: center :alt: ESP-LyraP-LCD32 block diagram :figclass: align-center ESP-LyraP-LCD32 block diagram Hardware Revision Details No previous versions available.

Related Documents - `ESP-LyraP-LCD32 Schematic `_ (PDF) - `ESP-LyraP-LCD32 PCB Layout `_ (PDF) For other design documentation for the board, please contact us at sales@espressif.com.

This user guide provides information on the ESP-LyraP-CAM extension board. This extension board cannot be bought separately and is usually sold together with other Espressif development boards (e.g., ESP32-S2-Kaluga-1), which will be referred to as *main boards* below. Currently, ESP-LyraP-CAM v1.1 is sold as part of the :doc:`user-guide-esp32-s2-kaluga-1-kit`. The ESP-LyraP-CAM extends the functionality of your main board by adding a camera. .. Image of v1.0 is used as there are no visual changes .. figure:: https://dl.espressif.com/dl/schematics/pictures/esp-lyrap-cam-v1.0-3d.png :align: center :alt: ESP-LyraP-CAM :figclass: align-center ESP-LyraP-CAM The document consists of the following major sections: - `Overview`_: Provides an overview and hardware/software setup instructions to get started. - `Hardware reference`_: Provides more detailed information about the ESP-LyraP-CAM's hardware. - `Hardware Revision Details`_: Covers revision history, known issues, and links to user guides for previous versions of the ESP-LyraP-CAM.

- `Related Documents`_: Gives links to related documentation. Overview This extension board adds a camera to your main board. Description of Components .. figure:: https://dl.espressif.com/dl/schematics/pictures/esp-lyrap-cam-v1.1-layout-front.png :align: center :alt: ESP-LyraP-CAM - front and back :figclass: align-center ESP-LyraP-CAM - front and back .. list-table:: :widths: 30 70 :header-rows: 1 - Description - Mount onto main board's Camera Header - Red LED is on if the power supply voltage is correct - Supports OV2640 and OV3660 camera modules; this extension board is supplied with an OV2640 camera module - LDO Regulators converting 3.3 V to 2.8 V and 1.5 V Start Application Development Before powering up your ESP-LyraP-CAM, please make sure that it is in good condition with no obvious signs of damage. Required Hardware - Board with a female Camera Header (e.g., ESP32-S2-Kaluga-1) - ESP-LyraP-CAM extension board - Computer running Windows, Linux, or macOS Hardware Setup Insert the ESP-LyraP-CAM extension board into your board's female Camera Header.

Software Setup See Section :ref:`user-guide-esp32-s2-kaluga-1-kit-software-setup` of the ESP32-S2-Kaluga-1 kit user guide. Hardware Reference Block Diagram A block diagram below shows the components of the ESP-LyraP-CAM and their interconnections. .. Image of v1.0 is used as there are no visual changes .. figure:: https://dl.espressif.com/dl/schematics/pictures/esp-lyrap-cam-v1.0-block-diagram.png :align: center :alt: ESP-LyraP-CAM block diagram :figclass: align-center ESP-LyraP-CAM block diagram Hardware Revision Details ESP-LyraP-CAM v1.1 ESP-LyraP-CAM v1.0 :doc:`Initial release ` Related Documents - `ESP-LyraP-CAM Schematic `_ (PDF) - `ESP-LyraP-CAM PCB Layout `_ (PDF) For other design documentation for the board, please contact us at sales@espressif.com.

This user guide provides information on the ESP-LyraP-CAM extension board. This extension board cannot be bought separately and is usually sold together with other Espressif development boards (e.g., ESP32-S2-Kaluga-1), which will be referred to as *main boards* below. Currently, ESP-LyraP-CAM v1.0 is sold as part of the :doc:`user-guide-esp32-s2-kaluga-1-kit-v1.2`. The ESP-LyraP-CAM extends the functionality of your main board by adding a camera. .. figure:: https://dl.espressif.com/dl/schematics/pictures/esp-lyrap-cam-v1.0-3d.png :align: center :alt: ESP-LyraP-CAM :figclass: align-center ESP-LyraP-CAM The document consists of the following major sections: - `Overview`_: Provides an overview and hardware/software setup instructions to get started. - `Hardware reference`_: Provides more detailed information about the ESP-LyraP-CAM's hardware. - `Hardware Revision Details`_: Covers revision history, known issues, and links to user guides for previous versions of the ESP-LyraP-CAM.

- `Related Documents`_: Gives links to related documentation. Overview This extension board adds a camera to your main board. Description of Components .. figure:: https://dl.espressif.com/dl/schematics/pictures/esp-lyrap-cam-v1.0-layout-front.png :align: center :alt: ESP-LyraP-CAM - front and back :figclass: align-center ESP-LyraP-CAM - front and back .. list-table:: :widths: 30 70 :header-rows: 1 - Description - Mount onto main board's Camera Header - Red LED is on if the power supply voltage is applied - Supports OV2640 and OV3660 camera modules; this extension board is supplied with an OV2640 camera module - LDO Regulators converting 3.3 V to 2.8 V and 1.5 V Start Application Development Before powering up your ESP-LyraP-CAM, please make sure that it is in good condition with no obvious signs of damage. Required Hardware - Board with a female Camera Header (e.g., ESP32-S2-Kaluga-1) - ESP-LyraP-CAM extension board - Computer running Windows, Linux, or macOS Hardware Setup Insert the ESP-LyraP-CAM extension board into your board's female Camera Header.

Software Setup See Section :ref:`user-guide-esp32-s2-kaluga-1-kit-v1.2-software-setup` of the ESP32-S2-Kaluga-1 kit user guide. Hardware Reference Block Diagram A block diagram below shows the components of the ESP-LyraP-CAM and their interconnections. .. figure:: https://dl.espressif.com/dl/schematics/pictures/esp-lyrap-cam-v1.0-block-diagram.png :align: center :alt: ESP-LyraP-CAM block diagram :figclass: align-center ESP-LyraP-CAM block diagram Hardware Revision Details No previous versions available. Related Documents - `ESP-LyraP-CAM Schematic `_ (PDF) - `ESP-LyraP-CAM PCB Layout `_ (PDF) For other design documentation for the board, please contact us at sales@espressif.com.

This user guide provides information on the ESP-LyraP-LCD32 extension board. This extension board cannot be bought separately and is usually sold together with other Espressif development boards (e.g., ESP32-S2-Kaluga-1), which will be referred to as *main boards* below. Currently, ESP-LyraP-LCD32 v1.2 is sold as part of the :doc:`user-guide-esp32-s2-kaluga-1-kit`. The ESP-LyraP-LCD32 extends the functionality of your main board by adding an LCD graphic display. .. Image of v1.1 is used as there are no visual changes .. figure:: https://dl.espressif.com/dl/schematics/pictures/esp-lyrap-lcd32-v1.1-3d.png :align: center :width: 2243px :height: 1534px :scale: 30% :alt: ESP-LyraP-LCD32 :figclass: align-center ESP-LyraP-LCD32 (click to enlarge) The document consists of the following major sections: - `Overview`_: Provides an overview and hardware/software setup instructions to get started. - `Hardware reference`_: Provides more detailed information about the ESP-LyraP-LCD32's hardware.

- `Hardware Revision Details`_: Covers revision history, known issues, and links to user guides for previous versions of the ESP-LyraP-LCD32. - `Related Documents`_: Gives links to related documentation. Overview This extension board adds a 3.2" LCD graphic display with the resolution of 320x240. This display is connected to ESP32-S2 over the SPI bus. Description of Components .. figure:: https://dl.espressif.com/dl/schematics/pictures/esp-lyrap-lcd32-v1.2-layout-front.png :align: center :width: 934px :height: 489px :scale: 70% :alt: ESP-LyraP-LCD32 - front :figclass: align-center ESP-LyraP-LCD32 - front (click to enlarge) .. figure:: https://dl.espressif.com/dl/schematics/pictures/esp-lyrap-lcd32-v1.2-layout-back.png :align: center :width: 934px :height: 600px :scale: 70% :alt: ESP-LyraP-LCD32 - back :figclass: align-center ESP-LyraP-LCD32 - back (click to enlarge) In the description of components below, **Reserved** means that the functionality is available, but the current version of the kit does not use it.

.. list-table:: :widths: 30 70 :header-rows: 1 - Description - Male Extension Header for mounting onto a female Extension Header - This version has a 3.2" 320x240 SPI LCD display module; the display driver/controller is either Sitronix ST7789V or Ilitek ILI9341 - No support for touch screens, keep the switches to OFF to make the pins available for other uses - (Reserved) Connect to main board's 3.2" LCD FPC connector - Switch to ON to set Reset/Backlight_control/CS to default high or low; switch to OFF to make the pins available for other uses Start Application Development Before powering up your ESP-LyraP-LCD32, please make sure that it is in good condition with no obvious signs of damage. Required Hardware - Board with a female Extension Header (e.g., ESP32-S2-Kaluga-1, ESP-LyraT-8311A) - ESP-LyraP-LCD32 extension board - Four mounting bolts (for stable mounting) - Computer running Windows, Linux, or macOS Hardware Setup To mount your ESP-LyraP-LCD32 onto the board with a female Extension Header: Software Setup See Section :ref:`user-guide-esp32-s2-kaluga-1-kit-software-setup` of the ESP32-S2-Kaluga-1 kit user guide.

Hardware Reference Block Diagram A block diagram below shows the components of the ESP-LyraP-LCD32 and their interconnections. .. figure:: https://dl.espressif.com/dl/schematics/pictures/esp-lyrap-lcd32-v1.2-block-diagram.png :align: center :alt: ESP-LyraP-LCD32 block diagram :figclass: align-center ESP-LyraP-LCD32 block diagram Hardware Revision Details ESP-LyraP-LCD32 v1.2 ESP-LyraP-LCD32 v1.1 :doc:`Initial release ` Related Documents - `ESP-LyraP-LCD32 Schematic `_ (PDF) - `ESP-LyraP-LCD32 PCB Layout `_ (PDF) For other design documentation for the board, please contact us at sales@espressif.com.

This user guide will help you get started with ESP32-S2-DevKitC-1 and will also provide more in-depth information. ESP32-S2-DevKitC-1 is an entry-level development board. This board integrates complete Wi-Fi functions. 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-DevKitC-1 on a breadboard. .. figure:: ../../../_static/esp32-s2-devkitc-1-v1-isometric.png :align: center :alt: ESP32-S2-DevKitC-1 with the ESP32-S2-SOLO Module :figclass: align-center ESP32-S2-DevKitC-1 with the ESP32-S2-SOLO Module The document consists of the following major sections: - `Getting Started`_: Overview of ESP32-S2-DevKitC-1 and hardware/software setup instructions to get started. - `Hardware Reference`_: More detailed information about the ESP32-S2-DevKitC-1's hardware. - `Hardware Revision Details`_: Revision history, known issues, and links to user guides for previous versions (if any) of ESP32-S2-DevKitC-1.

- `Related Documents`_: Links to related documentation. Getting Started This section provides a brief introduction of ESP32-S2-DevKitC-1, instructions on how to do the initial hardware setup and how to flash firmware onto it. Description of Components .. _user-guide-s2-devkitc-1-v1-board-front: .. figure:: ../../../_static/esp32-s2-devkitc-1-v1-annotated-photo.png :align: center :alt: ESP32-S2-DevKitC-1 - front :figclass: align-center ESP32-S2-DevKitC-1 - front The key components of the board are described in a clockwise direction. .. list-table:: :widths: 30 70 :header-rows: 1 - Description - ESP32-S2-SOLO series modules with an on-board PCB antenna or a connector for an external antenna. This series of modules have multiple options for flash and PSRAM size. For more information, please refer to :ref:`user-guide-s2-devkitc-1-v1-ordering-info`. - Turns on when the USB power is connected to the board. - Single USB-to-UART bridge chip provides transfer rates up to 3 Mbps.

- All available GPIO pins (except for the SPI bus for flash) are broken out to the pin headers on the board. For details, please see :ref:`user-guide-s2-devkitc-1-v1-header-blocks`. - ESP32-S2 full-speed USB OTG interface, compliant with the USB 1.1 specifications. The interface is used for power supply to the board, for flashing applications to the chip, and for communication with the chip using USB 1.1 protocols. - Press this button to restart the system. - Download button. Holding down **Boot** and then pressing **Reset** initiates Firmware Download mode for downloading firmware through the serial port. - A Micro-USB port used for power supply to the board, for flashing applications to the chip, as well as the communication with the chip via the on-board USB-to-UART bridge. - Addressable RGB LED, driven by GPIO18. - Power regulator that converts a 5 V supply into a 3.3 V output. Start Application Development Before powering up your ESP32-S2-DevKitC-1, please make sure that it is in good condition with no obvious signs of damage.

Required Hardware - ESP32-S2-DevKitC-1 - 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. Hardware Setup Connect the board with the computer using **USB-to-UART Port** or **ESP32-S2 USB Port**. In subsequent steps, **USB-to-UART Port** will be used by default. Software Setup Please proceed to `ESP-IDF Get Started `_, where Section `Installation Step by Step `_ will quickly help you set up the development environment and then flash an application example into your ESP32-S2-DevKitC-1. Contents and Packaging .. _user-guide-s2-devkitc-1-v1-ordering-info: Ordering Information The development board has a variety of variants to choose from, as shown in the table below. .. list-table:: :header-rows: 1 :widths: 41 24 9 8 18 - On-board Module [#]_ - Flash - PSRAM - Antenna - ESP32-S2-SOLO-2 (Recommended) - 8 MB - 2 MB - PCB on-board antenna - ESP32-S2-SOLO-2U (Recommended) - 8 MB - 2 MB - External antenna connector - ESP32-S2-SOLO - 4 MB - --- - PCB on-board antenna - ESP32-S2-SOLO-U - 4 MB - --- - External antenna connector - ESP32-S2-SOLO - 4 MB - 2 MB - PCB on-board antenna - ESP32-S2-SOLO-U - 4 MB - 2 MB - External antenna connector .

. [#] The ESP32-S2-SOLO-2 and ESP32-S2-SOLO-2U modules use chip revision v1.0, and the rest use chip revision v0.0. For more information about chip revisions, please refer to `ESP32-S2 Series SoC Errata`_. Retail Orders If you order a few samples, each ESP32-S2-DevKitC-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/contact-us/get-samples. Wholesale Orders If you order in bulk, the boards come in large cardboard boxes. For wholesale orders, please go to https://www.espressif.com/en/contact-us/sales-questions. Hardware Reference Block Diagram The block diagram below shows the components of ESP32-S2-DevKitC-1 and their interconnections. .. figure:: ../../../_static/esp32-s2-devkitc-1-v1-block-diags.png :align: center :scale: 70% :alt: ESP32-S2-DevKitC-1 (click to enlarge) :figclass: align-center ESP32-S2-DevKitC-1 (click to enlarge) Power Supply Options There are three mutually exclusive ways to provide power to the board: - USB-to-UART Port and ESP32-S2 USB Port (either one or both), default power supply (recommended) - 5V and G (GND) pins - 3V3 and G (GND) pins .

. _user-guide-s2-devkitc-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-s2-devkitc-1-v1-board-front`. The numbering is the same as in the `ESP32-S2-DevKitC-1 Schematic`_ (PDF). J1 ^^^ === No. Name Type [#]_ Function === 1 3V3 P 3.3 V power supply 2 3V3 P 3.3 V power supply 3 RST I CHIP_PU 4 4 I/O/T RTC_GPIO4, GPIO4, TOUCH4, ADC1_CH3 5 5 I/O/T RTC_GPIO5, GPIO5, TOUCH5, ADC1_CH4 6 6 I/O/T RTC_GPIO6, GPIO6, TOUCH6, ADC1_CH5 7 7 I/O/T RTC_GPIO7, GPIO7, TOUCH7, ADC1_CH6 8 15 I/O/T RTC_GPIO15, GPIO15, U0RTS, ADC2_CH4, XTAL_32K_P 9 16 I/O/T RTC_GPIO16, GPIO16, U0CTS, ADC2_CH5, XTAL_32K_N 10 17 I/O/T RTC_GPIO17, GPIO17, U1TXD, ADC2_CH6, DAC_1 11 18 [#]_ I/O/T RTC_GPIO18, GPIO18, U1RXD, ADC2_CH7, DAC_2, CLK_OUT3, RGB LED 12 8 I/O/T RTC_GPIO8, GPIO8, TOUCH8, ADC1_CH7 13 3 I/O/T RTC_GPIO3, GPIO3, TOUCH3, ADC1_CH2 14 46 I GPIO46 15 9 I/O/T RTC_GPIO9, GPIO9, TOUCH9, ADC1_CH8, FSPIHD 16 10 I/O/T RTC_GPIO10, GPIO10, TOUCH10, ADC1_CH9, FSPICS0, FSPIIO4 17 11 I/O/T RTC_GPIO11, GPIO11, TOUCH11, ADC2_CH0, FSPID, FSPIIO5 18 12 I/O/T RTC_GPIO12, GPIO12, TOUCH12, ADC2_CH1, FSPICLK, FSPIIO6 19 13 I/O/T RTC_GPIO13, GPIO13, TOUCH13, ADC2_CH2, FSPIQ, FSPIIO7 20 14 I/O/T RTC_GPIO14, GPIO14, TOUCH14, ADC2_CH3, FSPIWP, FSPIDQS 21 5V P 5 V power supply 22 G G Ground === J3 ^^^ === No.

Name Type Function === 1 G G Ground 2 TX I/O/T U0TXD, GPIO43, CLK_OUT1 3 RX I/O/T U0RXD, GPIO44, CLK_OUT2 4 1 I/O/T RTC_GPIO1, GPIO1, TOUCH1, ADC1_CH0 5 2 I/O/T RTC_GPIO2, GPIO2, TOUCH2, ADC1_CH1 6 42 I/O/T MTMS, GPIO42 7 41 I/O/T MTDI, GPIO41, CLK_OUT1 8 40 I/O/T MTDO, GPIO40, CLK_OUT2 9 39 I/O/T MTCK, GPIO39, CLK_OUT3 10 38 I/O/T GPIO38, FSPIWP 11 37 I/O/T SPIDQS, GPIO37, FSPIQ 12 36 I/O/T SPIIO7, GPIO36, FSPICLK 13 35 I/O/T SPIIO6, GPIO35, FSPID 14 0 I/O/T RTC_GPIO0, GPIO0 15 45 I/O/T GPIO45 16 34 I/O/T SPIIO5, GPIO34, FSPICS0 17 33 I/O/T SPIIO4, GPIO33, FSPIHD 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 G G Ground 22 G G Ground === .. [#] P: Power supply; I: Input; O: Output; T: High impedance.

.. [#] GPIO18 is not pulled up on boards with an ESP32-S2-SOLO-2 or ESP32-S2-SOLO-2U module. Pin Layout .. figure:: ../../../_static/esp32-s2-devkitc-1-v1-pinout.png :align: center :scale: 45% :alt: ESP32-S2-DevKitC-1 (click to enlarge) :figclass: align-center ESP32-S2-DevKitC-1 Pin Layout (click to enlarge) Hardware Revision Details This is the first revision of this board released. Related Documents For further design documentation for the board, please contact us at `sales@espressif.com `_. .. _NRND: https://www.espressif.com/en/products/longevity-commitment?id=nrnd .. _ESP32-S2 Series Chip Revision v1.0 Datasheet: https://www.espressif.com/sites/default/files/documentation/esp32-s2-v1.0_datasheet_en.pdf .. _ESP32-S2 Series SoC Errata: https://espressif.com/sites/default/files/documentation/esp32-s2_errata_en.pdf .. _ESP32-S2-DevKitC-1 Schematic: https://dl.espressif.com/dl/schematics/esp-idf/SCH_ESP32-S2-DEVKITC-1_V1_20220817.pdf