What are the core display specs for this board?

The board features a 4.3-inch 800×480 RGB LCD utilizing the ST7262 controller in RGB565 mode.

Which pins are used for the I2C bus?

The touch controller and IO expander share a common I2C bus on GPIO8 (SDA) and GPIO9 (SCL).

Can I use PWM to dim the backlight with this skill?

No, on this specific hardware revision, the backlight is toggled on/off via the CH422G IO expander and does not support native PWM dimming.

Does this skill support the latest LVGL v9?

No, this skill is specifically targeted for PlatformIO projects using LVGL v8.4, as LVGL v9 uses a significantly different API structure.

Waveshare ESP32-S3 4.3" LCD Developer Kit

Name: Waveshare ESP32-S3 4.3" LCD Developer Kit
Author: popcornylu

bypopcornylu

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开发者工具

Streamlines development for the Waveshare ESP32-S3-Touch-LCD-4.3B by providing instant hardware references, GPIO mappings, and PlatformIO configurations.

This skill acts as a comprehensive technical companion for developers working with the Waveshare ESP32-S3-Touch-LCD-4.3B board. It provides immediate access to hardware specifications, including details on the ST7262 display controller, GT911 touch interface, and CH422G IO expander. By offering ready-to-use PlatformIO project skeletons and LVGL v8.4 implementation patterns, it eliminates the need to manually search through external wikis or datasheets, ensuring faster prototyping and more reliable firmware development.

主要功能

01Specific guidance for ST7262 display timing and initialization

02Pre-configured PlatformIO environment templates and main.cpp skeletons

03LVGL v8.4 implementation guides with FreeRTOS thread-safety patterns

04Full GPIO pinout map and hardware resource summary

050 GitHub stars

06Detailed I2C address maps for touch controllers and IO expanders

使用场景

01Setting up a new LVGL-based UI project for the ESP32-S3-Touch-LCD-4.3B

02Implementing efficient display buffer handling and touch input drivers

03Debugging hardware pin conflicts and I2C communication with peripheral controllers

主要功能

01Specific guidance for ST7262 display timing and initialization

02Pre-configured PlatformIO environment templates and main.cpp skeletons

03LVGL v8.4 implementation guides with FreeRTOS thread-safety patterns

04Full GPIO pinout map and hardware resource summary

050 GitHub stars

06Detailed I2C address maps for touch controllers and IO expanders

使用场景

01Setting up a new LVGL-based UI project for the ESP32-S3-Touch-LCD-4.3B

02Implementing efficient display buffer handling and touch input drivers

03Debugging hardware pin conflicts and I2C communication with peripheral controllers