The ESP32-S3 3.5-inch Capacitive Touch Display Development Board Type B features a 320×480 pixel IPS panel with 262K colors. It includes a QSPI interface, an onboard camera interface, and supports Wi-Fi and Bluetooth 5, making it a comprehensive ESP32 with display solution.
This development board integrates audio input and output, enabling AI interaction and offline voice control capabilities.
Version Options
ESP32-S3-Touch-LCD-3.5B
Standard version, without case
ESP32-S3-Touch-LCD-3.5B-C
with case and OV5640 camera
Features
The ESP32-S3-Touch-LCD-3.5B is a high-performance, highly integrated MCU board designed by Waveshare. It features an onboard 3.5-inch capacitive touch IPS display, power management IC, 6-axis sensor (3-axis accelerometer and 3-axis gyroscope), RTC, and low power audio codec, facilitating rapid product development and integration.
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 3.5-inch IPS capacitive touch display for clear color picture display, 320 × 480 resolution, 262K color.
- Built-in AXS15231B LCD & touch controller, using QSPI and I2C communication respectively.
- Onboard QMI8658 6-axis IMU (3-axis accelerometer and 3-axis gyroscope) for detecting motion gestures, counting steps, etc.
- 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.
LCD Parameters
| Display Panel | IPS | Display Size | 3.5 inch |
|---|---|---|---|
| Resolution | 320 × 480 pixels | Display Colors | 262K |
| Brightness | 210 cd/㎡ | Contrast Ratio | 1000:1 |
| Driver IC | AXS15231B | Touch Type | Capacitive |
| Display Interface | QSPI | Touch Interface | I2C |
Supports AI Speech Interaction
Allows access to online large model platforms such as DeepSeek, Doubao, etc.
Capacitive Touch
Suitable for various smart device development, enabling human-machine interaction.
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 OV2640 / OV5640 and Other Mainstream Cameras
Optional for OV5640 5MP camera module, suitable for image capture, video monitoring and other applications to meet different needs.
* The OV5640 5MP camera module is only included in the ESP32-S3-Touch-LCD-3.5B-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-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 / OV2640 - 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 backup 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