7" 800x480 ESP32-S3 Uart Smart Touch Display

1. Introduction

The UEDX80480070E-WB-A is a high-performance HMI smart display module equipped with a 7-inch RGB screen (800x480). Powered by the ESP32-S3-WROOM-1-N16R8 module, it integrates 2.4GHz Wi-Fi and Bluetooth 5 (LE) capabilities.

The board features a high-speed RGB Interface for the display, ensuring smooth UI performance . It also includes a Capacitive Touch Panel (GT911), rich GPIO expansion, and supports popular frameworks like Arduino, ESP-IDF, and PlatformIO.

1.1 Product Features

• Processor:
  • ESP32-S3: Xtensa® Dual-Core 32-bit LX7 MCU @ 240MHz.
  • Integrated 2.4 GHz Wi-Fi (802.11 b/g/n) & Bluetooth 5 (LE).
• Memory:
  • 16MB Quad SPI Flash.
  • 8MB Octal SPI PSRAM.
• Display & Touch:
  • Screen: 7.0-inch TFT LCD (800x480 Resolution).
  • Interface: 16-bit RGB Interface (High Refresh Rate).
  • Driver IC: EK9716BD3 + EK73002AB2.
  • Touch: Capacitive Multi-Touch (GT911) via I2C.
• Peripherals:
  • Connectivity: USB-C (UART/Program), RS485, CAN, RS232 (Optional/Expansion).
  • Storage: TF Card Slot (SDIO/SPI).
  • Expansion: GPIO Header (UART, I2C, SPI, IOs).

1.2 Applications

• Industrial HMI Control Panels
• Smart Home Automation Centers
• Medical Devices & Instruments
• IoT Data Dashboards

2. Hardware Description

2.1 Module Overview

The detailed component layout is shown below:

2.2 GPIO Definition (Pinout)

The mapping for the Display and Touch interfaces:

Display (RGB Interface)

Touch (GT911)

Peripherals

2.3 Mechanical Dimensions

Physical size and mounting information:

• Outline Size: 180.9mm x 105.45mm
• Screen Size: 7.0 Inch Diagonal

3. Software

We provide comprehensive support for Arduino, PlatformIO, and ESP-IDF frameworks, with pre-ported LVGL examples.

3.1 Software Examples

Examples are available in the GitHub Repository.

3.2 Getting Started

3.2.1 Preparation

• Hardware: UEDX80480070E-WB-A Board, USB-C Cable.
• Software: VS Code (ESP-IDF v5.3+) or Arduino IDE (v2.0+) or VS Code (PlatformIO).

• Library: The following libraries are needed for Arduino IDE and PlatformIO

  Libraries	version	Description
  ESP32_Display_Panel	1.0.3+	by Espressif, This is necessary to drive the screen.
  ESP32_IO_Expander	Arduino automatic selection	The dependency library of ESP32_Display_Panel should be selected for installation together during the installation process.
  esp-lib-utils	Arduino automatic selection	The dependency library of ESP32_Display_Panel should be selected for installation together during the installation process.
  lvgl	8.4.0	A free and open-source embedded graphics library.

3.2.2 ESP-IDF Setup

1. Open platformio example
   • go to GitHub to download the program. You can download the main branch by clicking on the "<> Code" with green text
   • Open the example using VS Code(ESP-IDF)
2. Compile and upload:
   • Click build in the upper right corner to compile.
   • connect the microcontroller to the computer.If the compilation is correct.
   • Click upload in the upper right corner to download.

3.2.3 Arduino Setup

1. Install ESP32 Board Package:
   • Go to Tools > Board > Boards Manager.
   • Search esp32 by Espressif and install version 3.0.0+.
2. Install Libraries:
   • Go to Sketch > Include Library > Library Manager.
   • Search ESP32_Display_Panel by Espressif and install version 1.0.3+. You will be prompted whether to install its dependencies, please click INSTALL ALL to install all.
   • Install lvgl (v8.4.0 recommended).
3. Open example:
   • Navigate to File > Examples > ESP32_Display_Panel
   • Select Arduino > gui > lvgl_v8 > simple_port
4. Select Board:
   • Target: ESP32S3 Dev Module.
   • Settings:
     • Flash Size: 16MB (128Mb)
     • Partition Scheme: 16M Flash (3MB APP/9.9MB FATFS)
     • PSRAM: OPI PSRAM (Crucial!)
5. config esp supported panel board:
   • Open the esp_panel_board_supported_conf.h file in the example
   • Enable this file: change the ESP_PANEL_BOARD_DEFAULT_USE_SUPPORTED macro definition to 1
   • ensure you uncomment: #define BOARD_VIEWE_UEDX80480070E_WB_A
6. Configure the example:
   • [Optional] Edit the macro definitions in the lvgl_v8_port.h file
     • If using RGB/MIPI-DSI interface, change the LVGL_PORT_AVOID_TEARING_MODE macro definition to 1/2/3 to enable the avoid tearing function. After that, change the LVGL_PORT_ROTATION_DEGREE macro definition to the target rotation degree
     • If using other interfaces, please don't modify the LVGL_PORT_AVOID_TEARING_MODE and LVGL_PORT_ROTATION_DEGREE macro definitions
   • [Optional] Edit the macro definitions in the lv_conf.h file
     • If using SPI/QSPI interface, change the LV_COLOR_16_SWAP macro definition to 1.
7. Select the correct port:
   • Connect to the device.
   • Go to Tools > Port, Select the corresponding port.
8. Compile and upload:
   • Click √ in the upper right corner to compile.
   • connect the microcontroller to the computer.If the compilation is correct.
   • Click → in the upper right corner to download.

[!TIP] Configuration: In esp_panel_board_supported_conf.h, ensure you uncomment: #define BOARD_VIEWE_UEDX80480070E_WB_A Do not enable both ESP_PANEL_BOARD_DEFAULT_USE_SUPPORTED and ESP_PANEL_BOARD_DEFAULT_USE_CUSTOM You cannot enable multiple esp supported panel boards at the same time.

3.2.4 PlatformIO Setup

1. Open platformio example
   • go to GitHub to download the program. You can download the main branch by clicking on the "<> Code" with green text
   • Open the example using VS Code(PlatformIO)
2. Configure PlatformIO:
   • This example uses the BOARD_ESPRESSIF_ESP32_S3_LCD_EV_BOARD_2_V1_5 board as default. Choose BOARD_VIEWE_UEDX80480070E_WB_A in the [platformio]:default_envs of the platformio.ini file.
3. Configure the example:
   • [Optional] Edit the macro definitions in the lvgl_v8_port.h file
     • If using RGB/MIPI-DSI interface, change the LVGL_PORT_AVOID_TEARING_MODE macro definition to 1/2/3 to enable the avoid tearing function. After that, change the LVGL_PORT_ROTATION_DEGREE macro definition to the target rotation degree
     • If using other interfaces, please don't modify the LVGL_PORT_AVOID_TEARING_MODE and LVGL_PORT_ROTATION_DEGREE macro definitions
4. Compile and upload the project
   • Click the √(Compile) button
   • Connect the board to your computer.If the compilation is correct.
   • Click the →(upload) button

4. Related Documents & Resources

📄 Documents

🛠️ Tools

• Flash Download Tool: Utility for flashing firmware manually.
• Image Converter: Convert images for LVGL code.

[!IMPORTANT] For more resources, please explore the Resource Center.