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===============
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ESP-LyraT-8311A
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===============
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:link_to_translation:`zh_CN:[中文]`
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This user guide provides information on 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.
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The ESP-LyraT-8311A extends the functionality of your main board by adding sound processing functionality:
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- Audio playback/recording
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- Processing of audio signals
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- Programmable buttons for easy control
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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.
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.. figure:: https://dl.espressif.com/dl/schematics/pictures/esp-lyrat-8311a-v1.2-3d.png
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:align: center
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:width: 2545px
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:height: 1786px
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:scale: 30%
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:alt: ESP-LyraT-8311A
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:figclass: align-center
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ESP-LyraT-8311A (click to enlarge)
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The document consists of the following major sections:
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- `Overview`_: Provides an overview and hardware setup instructions.
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- `Hardware reference`_: Provides more detailed information about the ESP-LyraT-8311A's hardware.
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- `Hardware Revision Details`_: Covers revision history, known issues, and links to user guides for previous versions of the ESP-LyraT-8311A.
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- `Related Documents`_: Gives links to related documentation.
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Overview
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========
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The ESP-LyraT-8311A is mainly designed for audio applications. However, it can also be used for other purposes.
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Description of Components
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-------------------------
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.. figure:: https://dl.espressif.com/dl/schematics/pictures/esp-lyrat-8311a-v1.2-layout-front.png
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:align: center
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:width: 934px
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:height: 565px
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:scale: 80%
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:alt: ESP-LyraT-8311A - front
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:figclass: align-center
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ESP-LyraT-8311A - front (click to enlarge)
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The description of components starts from the top right corner and then goes clockwise.
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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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.. list-table::
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:widths: 30 70
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:header-rows: 1
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* - Key Component
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- Description
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* - Extension Header
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- 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
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* - Function Button
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- Programmable button
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* - Microphone
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- Supports Electret and MEMS microphones; this extension board is supplied with an electret microphone
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* - Headphone Connector
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- 1/8" headphone connector
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* - Speaker Connector
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- Connect an external speaker to the 2-pin connector
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* - PA
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- 3 W Audio signal amplifier for the external speaker
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* - External Mic-Matrix Connector
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- (Reserved) FPC connector for external Mic-Matrix (microphone boards)
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* - ADC
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- (Reserved) high-performance ADC/ES7243: 1 channel for microphone, 1 channel for acoustic echo cancellation (AEC) function
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* - Mono Audio Codec
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- 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
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Start Application Development
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-----------------------------
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Before powering up your ESP-LyraT-8311A, please make sure that it is in good condition with no obvious signs of damage.
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Required Hardware
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^^^^^^^^^^^^^^^^^
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- Board with a female Extension Header (e.g., ESP32-S2-Kaluga-1)
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- ESP-LyraT-8311A extension board
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- Four mounting bolts (for stable mounting)
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- Computer running Windows, Linux, or macOS
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Hardware Setup
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^^^^^^^^^^^^^^
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To mount your ESP-LyraT-8311A onto the board with a female Extension Header:
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1. Install the four mounting bolts onto the board with a female Extension Header
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2. Align the ESP-LyraT-8311A with the bolts and Extension Header and insert it carefully
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Software Setup
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^^^^^^^^^^^^^^
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Depending on your application see:
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* `ESP-ADF Getting Started Guide <https://docs.espressif.com/projects/esp-adf/en/latest/get-started/index.html#about-esp-adf>`_ if you develop with ESP-ADF (Espressif Audio Development Framework).
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* Section :ref:`user-guide-esp32-s2-kaluga-1-kit-software-setup` of the ESP32-S2-Kaluga-1 kit user guide if you develop directly with ESP-IDF (Espressif IOT Development Framework).
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Hardware Reference
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==================
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Block Diagram
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-------------
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A block diagram below shows the components of ESP-LyraT-8311A and their interconnections.
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.. figure:: https://dl.espressif.com/dl/schematics/pictures/esp-lyrat-8311a-v1.2-block-diagram.png
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:align: center
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:alt: ESP-LyraT-8311A block diagram
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:figclass: align-center
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ESP-LyraT-8311A block diagram
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Hardware Revision Details
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=========================
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No previous versions available.
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Related Documents
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=================
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- `ESP-LyraT-8311A Schematic <https://dl.espressif.com/dl/schematics/ESP-LyraT-8311A_V1_2_SCH_20200421A.pdf>`_ (PDF)
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- `ESP-LyraT-8311A PCB Layout <https://dl.espressif.com/dl/schematics/ESP-LyraT-8311A_V1_2_PCB_20200324AA.pdf>`_ (PDF)
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For other design documentation for the board, please contact us at sales@espressif.com. |