ESP32-S3
3.5-inch rounded LCD screen development board
Integrated audio input and output modules to enable AI interaction and offline voice contro


Version selection

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 OV2640 and 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.


Capacitive touch
Applicable to the development of various intelligent devices and can realize human-computer interaction functions

IPS display panel
Excellent display performance, 262K color, wide viewing angle

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

Supports mainstream cameras such as OV2640 / OV5640
The version with OV5640 camera is optional. The OV5640 camera supports 5 million pixels and is suitable for image acquisition, video surveillance and other application scenarios to meet diverse needs.

(Only housing version with OV5640 camera)
Support ESP-IDF, Arduino
Equipped with a complete SDK and open source tutorials, it is easy to get started and can be quickly embedded into the application

Supports Wi-Fi and BLE 5
ESP32-S3 integrates 2.4GHz Wi-Fi (802.11 b/g/n) with 40MHz bandwidth, and its low-power Bluetooth subsystem supports Bluetooth 5 (LE) and Bluetooth Mesh

Resource Overview

- ESP32-S3R8
Wi-Fi and Bluetooth SoC, running at 240MHz, with 8MB PSRAM on-chip
- Onboard patch antenna
- W25Q128JVSIQ
16MB NOR-Flash
- Camera interface
Support mainstream cameras such as OV5640 / OV2640
- Micro SD card slot
- IPEX 1st generation transposon
Can be switched to use external antenna by unsoldering resistor
- MX1.25 speaker port
- BOOT button
- RESET button
- PWR button
- AXP2101
Highly integrated power management chip
- Charging indicator
- Type-C port
- ES8311
Low power audio codec chip
- Power indicator
- microphone
- SH1.0 RTC battery interface
Access to rechargeable RTC battery
- MX1.25 Li-ion battery port
MX1.25 2PIN connector, can be used to connect 3.7V lithium battery, supports charging and discharging
- 2.54mm header interface
Lead out available IO function pins for easy expansion
- PCF85063
RTC clock chip
- QMI8658
Six-axis inertial measurement unit (IMU), including a 3-axis gyroscope and a 3-axis accelerometer
Pin Definition

Product size
Version without housing
Version with housing
[] ESP32-S3-Touch-LCD-3.5【No Case-Camera】
[] ESP32-S3-Touch-LCD-3.5-C【With Case-Camera】

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