QSPI Display, Audio Input/Output, Supports AI interaction and offline voice control
Version Options
ESP32-S3-Touch-LCD-3.49
Case A version, comes with a 18650 Lithium battery
(can be installed inside the case)
ESP32-S3-Touch-LCD-3.49-EN
Case A version, without battery
ESP32-S3-Touch-LCD-3.49B
Case B version, comes with a 3.7V Lithium polymer battery
(can be installed inside the case)
ESP32-S3-Touch-LCD-3.49B-EN
Case B version, without battery
LCD parameters
Display Panel
LCD
Display Size
3.49 inch
Resolution
172 × 640
Display Colors
16.7M
Brightness
350 cd/m2
Contrast Ratio
1200:1
Display Interface
QSPI
Driver IC
AXS15231B
Touch Interface
I2C
Touch Type
Capacitive touch
Features
The ESP32-S3-Touch-LCD-3.49 is a high-performance, highly integrated microcontroller development board designed by Waveshare. Onboard 3.49inch capacitive touch IPS display, highly integrated power management IC, 6-axis IMU (3-axis accelerometer and 3-axis gyroscope), RTC chip, low-power audio codec IC, echo cancellation circuit, and so on, which makes it easy for you to develop and integrate into the products quickly.
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
Onboard 3.49inch IPS capacitive touch display for clear color picture display, 172 × 640 resolution, 16.7M color
Equipped with dual microphone array with noise reduction and echo cancellation circuit, suitable for accurate speech recognition and near/far-field wake-up
Built-in AXS15231B LCD & touch controller, using QSPI and I2C interfaces for 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 for RTC functionality
Onboard PWR and BOOT programmable buttons for easy custom function development
Onboard TF card slot for extended storage and fast data transfer, suitable for applications such as data recording and media playback, simplifying circuit design
Reserved 22PIN 2.54mm pitch through-hole pads for easy connection to external modules or functional expansion, enhancing development flexibility.
Onboard audio codec
Supports high-quality audio processing, providing clear and high-quality audio input and output
Supports AI Speech Interaction
Allows access to online large model platforms such as DeepSeek, Doubao, etc.
Suitable for various smart device development, enabling human-machine interaction
Two Case options
for reference only, please refer to the package content for detailed part list.
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 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
Wi-Fi and Bluetooth SoC, up to 240MHz operating frequency, with onboard 8MB PSRAM
Onboard antenna
supports 2.4GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5 (LE)
