ESP32-S3-Touch-LCD-3.5

Integrated audio input and output, enabling AI interaction and offline voice control

ESP32-S3 3.5inch touch display development board, front view

Version Options

ESP32-S3-Touch-LCD-3.5
Standard version, without case

ESP32-S3-Touch-LCD-3.5-C
with case and OV5640 camera

LCD Parameters

Display Panel	IPS	Display Size	3.5 inch
Resolution	320 × 480 pixels	Display Colors	262K
Brightness	220cd/㎡	Contrast Ratio	1100:1
Communication Interface	SPI	Driver IC	ST7796
Touch Type	Capacitive	Touch IC	FT6336

Features

ESP32-S3-Touch-LCD-3.5 is a high-performance, highly integrated MCU board designed by Waveshare. Onboard 3.5inch capacitive touch IPS display, power management IC, 6-axis sensor (3-axis accelerometer and 3-axis gyroscope), RTC, low power audio codec, and so on, which makes it easy for you to develop and integrate into the products quickly.

Key features include:

Equipped with ESP32-S3R8 Xtensa 32-bit LX7 dual-core processor, up to 240MHz main frequency
Supports 2.4GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5 (LE), with onboard antenna
Built in 512KB of SRAM and 384KB ROM, with onboard 8MB PSRAM and an external 16MB Flash memory
Type-C connector, improving device compatibility, easier to use
Onboard 3.5inch capacitive touch display for clear color picture display, 320 × 480 resolution, 262K color
Built-in ST7796 display driver and FT6336 capacitive touch chip, using SPI and I2C communication respectively, effectively saving the IO resources
Onboard QMI8658 6-axis IMU (3-axis accelerometer and 3-axis gyroscope) for detecting motion gestures
Onboard PCF85063 RTC chip, powered by main Lithium battery through AXP2101 chip, with reserved RTC battery header for connecting a backup battery, ensuring RTC function during the replacement of the main battery
Onboard PWR and BOOT programmable buttons for easy custom function development
Onboard 3.7V MX1.25 Lithium battery recharge/discharge header
Adapting I2C, UART, USB, and multiple GPIO pins, for connecting peripherals and debugging
Onboard TF card slot for extended storage and fast data transfer, suitable for applications such as data recording and media playback, simplifying circuit design
Onboard camera interface, compatible with mainstream cameras such as OV5640
Adopts AXP2101 IC for efficient power management, supports multiple voltage outputs, battery charging, battery management, and battery life optimization, etc.

Supports AI Speech Interaction

Allows access to online large model platforms such as DeepSeek, Doubao, etc.

ESP32-S3 Touch LCD 1.85, allows accessing to online large model platforms

ESP32-S3 Touch LCD 1.85, easy to access AI platforms

Capacitive touch

Suitable for various smart device development, enabling human-machine interaction

ESP32-S3 3.5inch touch display development board, touch demo

IPS Display Panel

Excellent display performance, 262K color, wide viewing angle

Onboard audio codec

Supports high-quality audio processing, providing clear and high-quality audio input and output

Supports OV5640 and other mainstream cameras

Optional for OV5640 5MP camera module, suitable for image capture, video monitoring and other applications to meet different needs

ESP32-S3 3.5inch touch display development board, supports 0V5640 and other mainstream cameras

* The OV5640 5MP camera module is only included in the ESP32-S3-Touch-LCD-3.5-C version.

Supports ESP-IDF, Arduino IDE

Comprehensive SDK, Dev Resources, Tutorials To Help You Easily Get Started

Wi-Fi and BLE 5 support

ESP32-S3 integrates 2.4 GHz Wi-Fi (802.11 ax/b/g/n) with 40 MHz of bandwidth support, Its Bluetooth Low Energy subsystem supports Bluetooth 5 (LE) and Bluetooth Mesh

What's On Board

ESP32-S3 3.5inch touch display development board, onboard components

ESP32-S3R8
The SoC with WiFi and Bluetooth, up to 240MHz operating frequency, with onboard 8MB PSRAM
Onboard antenna
W25Q128JVSIQ
16MB NOR-Flash
Camera interface
Supports mainstream cameras such as OV5640
TF card slot
IPEX 1 antenna connector
Reserved connector, enabled via resoldering an onboard resistor
MX1.25 speaker header
BOOT button
RESET button
PWR button
AXP2101
Highly integrated power management IC

Charge indicator
USB Type-C port
ES8311
Low power audio codec chip
Power supply indicator
Microphone
SH1.0 RTC battery header
for connecting rechargeable RTC battery
MX1.25 Lithium battery header
MX1.25 2P connector, for 3.7V Lithium battery, supports charging and discharging
2.54mm pitch GPIO header
Adapting available IO function pins for easy expansion
PCF85063
RTC chip
QMI8658
6-axis IMU includes a 3-axis gyroscope and a 3-axis accelerometer