ESP32-S3-Touch-LCD-4.3B is a microcontroller development board supporting 2.4GHz Wi-Fi and BLE 5. It features high-capacity Flash and PSRAM, an onboard 4.3-inch LCD capacitive touchscreen capable of smoothly running GUI programs such as LVGL, and multiple peripheral interfaces for rapid development of ESP32-S3-based HMI applications.
Key Features:
- Powered by a high-performance Xtensa 32-bit LX7 dual-core processor, running at up to 240MHz
- Supports 2.4GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5 (LE), with onboard antenna
- Built-in 512KB SRAM and 384KB ROM, stacked with 16MB Flash and 8MB PSRAM
- Onboard 4.3-inch LCD capacitive touchscreen 800 × 480 resolution, 65K colors
- Supports I2C interface capacitive touch control 5-point touch, supports interrupt
- Onboard voltage regulator chip supports wide voltage power supply from 736V
- Onboard RTC chip and rechargeable battery enables time retention during power loss
- Onboard CAN, RS485, I2C interfaces, Micro SD card slot, GH1.25 2P battery connector, and digital isolation I/O resources
- Inputs with bidirectional optocoupler isolation supports both passive and active switch signal inputs; active source supports positive and negative voltage
- Outputs with optocoupler isolation stronger driving capability, sink current up to 450mA (MAX)
- External LED indicators convenient for checking power and battery charging status
- Supports flexible clock and independent module power settings for precise control, enabling low-power operation across multiple scenarios