Waveshare ESP32-S3-Touch-LCD-4.3B: Featuring Xtensa LX7 Dual-Core Processor and ESP32-S3 SoC

The Waveshare ESP32-S3-Touch-LCD-4.3B is a flexible development board built on the ESP32-S3 SoC with RS485, CAN Bus, I2C, and isolated DIO interfaces via terminal block. It has a 4.3-inch capacitive touchscreen with a resolution of 800×480. The board includes a 32-bit dual-core Xtensa LX7 processor (up to 240 MHz), 16 MB of flash storage, and 8 MB of PSRAM. It supports 2.4GHz Wi-Fi, Bluetooth 5, and I2C touch control and has an RTC and microSD card slot. ESP32-S3-Touch-LCD-4.3B is ideal for IoT HMI, smart home automation, and other ESP32-S3 projects.

Previously, we wrote about the Waveshare RP2040-LCD-1.28, which has a 1.28-inch round LCD display, a Li-ion battery charger, and a 6-axis sensor (3-axis accelerometer and 3-axis gyroscope). Feel free to check it out if you’re interested.

Waveshare ESP32-S3 touch LCD specifications:

• MCU: Espressif Systems ESP32-S3R8
  • CPU: Dual-core Tensilica LX7 @ up to 240 MHz with vector instructions for AI acceleration, 384KB ROM.
  • Memory: 512KB RAM and 8MB PSRAM
  • Storage: 16MB Flash
  • Connectivity: 2.4 GHz WiFi 4 and Bluetooth 5.0 LE with support for long-range, up to 2Mbps data rate, mesh network.
• Storage: MicroSD card slot
• Display:
  • 4.3-inch capacitive touchscreen
  • 800×480 resolution
  • I2C touch control
• Input/Output
  • CAN Bus (TJA1051T/3)
  • RS485 (SP3485EN)
  • I2C
  • Isolated Digital Input: 2x DI (5-36V, passive/active, bi-directional optocoupler)
  • Isolated Digital Output: 2x DO (5-36V, 450mA/channel)
• Additional Features
  • Onboard RTC (Real-Time Clock) chip
  • LED indicators for power and battery status
• Power Supply
  • 7-36V DC via terminal block
  • USB Type-C
  • Rechargeable battery support (3.7V lithium)
• Operating Temperature: 0°C ~ 65°C
• Dimensions: 112.4mm x 75.1mm

The Waveshare ESP32-S3 Touch LCD 4.3B wiki page gives detailed info on the board’s features, specs, setup instructions, and usage examples. It’s a helpful resource for developers using this versatile board.

The Waveshare ESP32-S3 touch LCD is available on  AliExpress for $44.23. The dev board is also available on Amazon for $42.99, and on the Waveshare store for $36.99, but the price for the latter does not include shipping.

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