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esp32_s3_lcd_ev_board

README.md

BSP: ESP32-S3-LCD-EV-BOARD

Component Registry

ESP32-S3-LCD-EV-BOARD is a development board for evaluating and verifying ESP32-S3 screen interactive applications. It has the functions of touch screen interaction and voice interaction. The development board has the following characteristics:

  • Onboard ESP32-S3-WROOM-1 module, with built-in 16 MB Flash + 8 MB PSRAM
  • Onboard audio codec + audio amplifier
  • Onboard dual microphone pickup
  • USB type-C interface download and debugging
  • It can be used with different screen sub boards, and supports RGB, 8080, SPI, I2C interface screens, as below:
Board Name Screen Size (inch) Resolution LCD Driver IC (Interface) Touch Driver IC Schematic Support
ESP32-S3-LCD_Ev_Board_SUB1 0.9 128 x 64 SSD1315 (I2C) * link Not yet
2.4 320 x 240 ST7789V (SPI) XTP2046 Not yet
ESP32-S3-LCD_Ev_Board_SUB2 3.5 480 x 320 ST7796S (8080) GT911 link Not yet
3.95 480 x 480 GC9503CV (RGB) FT5x06 Yes
ESP32-S3-LCD_Ev_Board_SUB3 4.3 800 x 480 Unkonw (RGB) GT1151 link Yes

Here are some useful configurations in menuconfig that can be customed by user:

  • BSP_LCD_SUB_BOARD: Choose a LCD sub-board according to hardware.
  • BSP_LCD_RGB_BUFFER_NUMS: Set number of frame buffers. Only when it is set to multiple can the anti-tearing function be turned on.
  • BSP_LCD_RGB_REFRESH_MODE: Select the refresh mode for RGB LCD.
    • BSP_LCD_RGB_REFRESH_AUTO: Refresh the LCD in the most common way.
    • BSP_LCD_RGB_REFRESH_MANUALLY:Refresh the LCD in a specific task. It can reduce the bandwidth of PSRAM usage.
    • BSP_LCD_RGB_BOUNCE_BUFFER_MODE: Enable bounce buffer mode can achieve higher PCLK frequency at the cost of higher CPU consumption. And it's helpful when the screen drifts (Especially using Wi-Fi or OTA). It should be used with ESP32S3_DATA_CACHE_LINE_64B.
  • BSP_DISPLAY_LVGL_BUF_CAPS: Choose the memory type of LVGL buffer. Internal memory is more fast.
  • BSP_DISPLAY_LVGL_BUF_HEIGHT: Set the height of LVGL buffer, and its width is equal to LCD's width.
  • BSP_DISPLAY_LVGL_AVOID_TEAR: Avoid tearing effect by using multiple buffers. Need to set BSP_LCD_RGB_BUFFER_NUMS more than 1.
    • BSP_DISPLAY_LVGL_FULL_REFRESH: Use LVGL full-refresh mode. Set BSP_LCD_RGB_BUFFER_NUMS to 3 will get higher FPS.
    • BSP_DISPLAY_LVGL_DIRECT_MODE: Use LVGL direct mode.