OVMS3-idf/docs/en/hw-reference/esp32s2/user-guide-esp-lyrap-lcd32-v1.1.rst

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===============
ESP-LyraP-LCD32
===============
:link_to_translation:`zh_CN:[中文]`
This user guide provides information on the ESP-LyraP-LCD32 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.
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
* - Key Component
- Description
* - Extension Header
- Male Extension Header for mounting onto a female Extension Header
* - LCD display
- This version has a 3.2" 320x240 SPI LCD display module
* - Touch Screen Switch
- No support for touch screens, keep the switches to OFF to make the pins available for other uses
* - Main Board 3.2" LCD FPC Connector
- (Reserved) Connect to main board's 3.2" LCD FPC connector
* - Control Switch
- 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:
1. Install the four mounting bolts onto the board with a female Extension Header
2. Align the ESP-LyraP-LCD32 with the bolts and Extension Header and insert it carefully
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-v1.1-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 <https://dl.espressif.com/dl/schematics/ESP-LyraP-LCD32_V1_1_SCH_20200324A.pdf>`_ (PDF)
- `ESP-LyraP-LCD32 PCB Layout <https://dl.espressif.com/dl/schematics/ESP-LyraP-LCD32_V1_1_PCB_20200324AC.pdf>`_ (PDF)
For other design documentation for the board, please contact us at sales@espressif.com.