Resources:
www.waveshare.com/wiki/ESP32-S3-Touch-LCD-4B
ESP32-S3 86 Box Development Board: Advanced HMI and IoT Solution with 4-inch Touch Display
The ESP32-S3 86 Box Development Board is a powerful, feature-rich platform designed for high-performance human-machine interface (HMI) and IoT applications. Powered by the Xtensa 32-bit LX7 dual-core processor running at up to 240 MHz, it integrates 2.4 GHz Wi-Fi and Bluetooth 5 (LE) for robust wireless connectivity. This development board comes with 16 MB Flash, 8 MB PSRAM, and a 4-inch 480480 capacitive touch LCD display capable of running advanced GUI frameworks such as LVGL with smooth responsiveness. With multiple peripheral interfaces and low-power management features, its ideal for applications like smart control panels, home automation, industrial control systems, and intelligent lighting solutions.
Key Features

High-Performance Processor Xtensa 32-bit LX7 dual-core CPU up to 240 MHz for demanding applications.

Wireless Connectivity Integrated 2.4 GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5 (LE) with onboard antenna.

Ample Memory 512 KB SRAM, 384 KB ROM, 16 MB Flash, and 8 MB PSRAM for smooth multitasking.

4-inch Capacitive Touch Display 480480 resolution, 65K colour support, and 5-point touch control via IC.

GUI Ready Optimised for running advanced graphical interfaces such as LVGL.

Low Power Consumption Flexible clock and independent power control for efficient operation in various scenarios.

Versatile Applications Suitable for smart panels, gateways, industrial automation, and smart lighting control.

ESP32-S3 Smart 86 Box
Based On ESP32-S3 Module, Supports Secondary Development
Enables Smart Living & Industrial IoT For Scenario-Based Control

4 inch IPS Touch Screen
160 Wide Viewing Angle, Excellent Display Performance

Capacitive 5-Point Touch
Supports capacitive 5-point touch function controlled via I2C interface for flexible operation and smooth UI interaction

WIFI And Bluetooth Support
supports 2.4 GHz Wi-Fi (802.11 B/G/N) and Bluetooth 5 (LE), Onboard Antenna

Audio Input/Output
Onboard ES8311 audio codec chip and ES7210 echo cancellation circuit. Meet daily audio application scenarios

What’s On Board

ESP32-S3-WROOM-1-N16R8The SoC with WiFi and Bluetooth, up to 240MHz operating frequency, with onboard 8MB PSRAM and 16MB Flash
AXP2101Highly integrated power management IC
ES7210 echo cancellation chipecho cancellation algorithm chip, used to eliminate echo and improve audio capture accuracy
ES8311 low-power audio codec chipfor audio encoding and decoding
PCF85063RTC chip
QMI86586-axis IMU includes a 3-axis gyroscope and a 3-axis accelerometer
TCA9554PWRGPIO expansion chip
LCD connectorfor connecting 4inch RGB screen
USB TO UART Type-C connectorfor power supply, program burning and debugging
USB Type-C connectorESP32-S3 USB interface, for power supply, program burning and log printing
Onboard microphonesMicrophone inputs with echo cancellation
Speaker headerMX1.25 2P connector, supports 8 2W speaker
PWRKEY buttonfor power supply on/off, programmable for other functions
BOOT buttonfor device startup and function debugging
CHG LED indicatorfor indicating the charging status of the Lithium battery
PH2.0 Lithium battery headerfor 3.7V Lithium battery, supports charging and discharging
Expansion header (pitch 2.0mm)for connecting peripherals

Dimensions

Package Content:
ESP32-S3-Touch-LCD-4B 1