Building Real HMI Interfaces with a 4.3-inch ESP32-S3 Touch Display (WiFi + LVGL)

When people talk about ESP32 development boards, most examples focus on sensors, relays, LEDs, or simple web dashboards. But one area that has grown fast in recent years is embedded HMI (Human Machine Interface) development. Instead of using a small OLED or character LCD, many developers now want a full touchscreen UI with wireless connectivity, responsive graphics, and enough processing power to run modern interface frameworks like LVGL. That’s where a 4.3-inch ESP32-S3 LCD touch development bo