ESP32-S3 4.3 Inch AI Voice Touch Display Development Board with Case

ESP32 Touch Screen for HMI and IoT Control Panels

This ESP32 touch screen development board combines a 4.3 inch IPS LCD, 5-point capacitive touch control, wireless connectivity, audio hardware, and isolated industrial I/O in one compact unit. Built around the ESP32-S3-WROOM-1-N16R8 module, it provides dual-core processing, generous onboard memory, and the interfaces needed to create responsive human-machine interaction terminals.

The included plastic case makes this ESP32-S3 touch display well suited for industrial HMI panels, smart home terminals, automation displays, voice assistant interfaces, IoT control panels, and custom LVGL user interface projects. The case supports rear mounting with 75 mm (2.95 in) hole spacing.

4.3 Inch ESP32-S3 Capacitive Touch Display

The integrated 4.3 inch ESP32 display features an 800 x 480 IPS LCD with 65K color and a 160 degree wide viewing angle. Its ST7262 RGB display driver supports detailed graphical interfaces, dashboards, menus, status screens, and real-time control applications.

A GT911 capacitive touch controller provides 5-point touch input over I2C with interrupt support. This enables fluid navigation and multi-touch interaction for LVGL graphical interfaces and embedded control panels.

ESP32-S3 AI Voice Interaction and Audio

This ESP32 voice assistant development board integrates an ES8311 audio codec, ES7210 echo cancellation, a dual-microphone array, and a speaker header. It supports both audio recording and audio output for interactive voice terminals, smart appliances, access control interfaces, and connected automation systems.

The board supports AI speech interaction with compatible online large model platforms such as DeepSeek and Doubao. Developers can combine voice functions with LVGL graphics, touch controls, Wi-Fi connectivity, and external equipment to build complete smart interaction terminals.

Industrial ESP32 HMI with Isolated Digital I/O

Designed for more than basic desktop development, this ESP32 industrial HMI accepts a wide 7 to 36V DC input through its onboard voltage regulator. Optocoupler-isolated digital input and output connections help separate the processor from external control signals commonly found in industrial and automation environments.

The bi-directional isolated digital input supports 5 to 36V signals, NPN or PNP configurations, and passive or active inputs. The isolated digital output operates from 5 to 36V with an open-drain configuration and can sink up to 450mA per channel. A 16-pin screw terminal supports convenient bottom wiring, while the I2C screw terminal provides an accessible connection for compatible external devices.

Wi-Fi, Bluetooth, Storage, and RTC Connectivity

The onboard antenna supports 2.4GHz Wi-Fi 802.11 b/g/n and Bluetooth 5 Low Energy for IoT communication, wireless configuration, remote monitoring, and smart home integration. A TF/microSD card slot provides removable storage for interface assets, configuration files, logs, and application data.

An onboard RTC chip with a CR927 battery holder helps retain time during power loss. Additional connections include USB Type-C, selectable 5V and 3.3V output, and an MX1.25 2-pin battery header for a 3.7V single lithium battery. The battery is not included. BOOT and RESET buttons simplify development, while power, charging, and charge-complete LEDs provide visual status indication.

ESP32 Touch Display Applications

• Industrial HMI panels and machine control interfaces
• Smart home control terminals and wall-mounted dashboards
• AI voice assistant and speech interaction interfaces
• IoT monitoring and equipment control panels
• Factory automation displays and status terminals
• LVGL touch screen user interface projects
• Connected appliances and embedded control systems

ESP32-S3 Touch Display Specifications