ESP32-S3 High-Performance Development Board With 3.49inch IPS Capacitive Touch Display

ESP32-S3 3.49inch Touch LCD Development Board QSPI Display, Audio Input/Output, Supports AI interaction and offline voice control 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 240 MHz main frequency Supports 2.4 GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5 (LE), with onboard antenna Built-in 512 KB SRAM and 384 KB ROM, with onboard 8 MB PSRAM and external 16 MB Flash memory Onboard 3.49-inch IPS capacitive touch display with 172 × 640 resolution and 16.7 M colors for clear visual output Dual-microphone array with noise reduction and echo-cancellation, suitable for accurate speech recognition and near / far-field wake-up Built-in AXS15231B LCD and touch controller, communicating via QSPI (LCD) and I2C (touch) interfaces Onboard QMI8658 6-axis IMU (3-axis accelerometer + 3-axis gyroscope) for motion detection, gesture control, and step counting Onboard PCF85063 RTC chip for real-time clock functionality Onboard PWR and BOOT programmable buttons for easy custom-function development Onboard 3.7 V MX1.25 lithium-battery charge / discharge header or 18650 lithium-battery holder Onboard TF card slot for storage expansion and fast data transfer, ideal for data logging and media playback Reserved 22-pin 2.54 mm pitch through-hole pads for external module connection and functional expansion Version Options ESP32-S3-Touch-LCD-3.49-ENCase A version, without battery ESP32-S3-Touch-LCD-3.49BCase B version, comes with a 3.7V Lithium polymer battery(can be installed inside the case) 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 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. IPS Display Panel Excellent display performance, 16.7M color, wide viewing angle Capacitive Touch Suitable for various smart device development, enabling human-machine interaction 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 1. ESP32-S3R8Wi-Fi and Bluetooth SoC, up to 240 MHz operating frequency, with onboard 8 MB PSRAM 2. Onboard AntennaSupports 2.4 GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5 (LE) 3. TCA9554PWR8-bit I2C GPIO expansion chip 4. W25Q128JVSI16 MB Flash memory 5. ES8311 DACHigh-performance, low-power audio DAC for audio encoding 6. ES7210 ADCHigh-performance, low-power audio ADC, supports multiple microphone inputs 7. QMI8658 IMU3-axis gyroscope and 3-axis accelerometer for motion detection and attitude sensing 8. Dual Microphone ArrayDual microphones supporting advanced voice interaction 9. TF Card SlotSupports FAT32-formatted TF cards for storage expansion 10. RESET ButtonPress BOOT, then RESET to enter download mode (back side) 11. PWR Power ButtonSoftware-controlled power switch when powered by lithium battery (back side) 12. BOOT ButtonPress BOOT, then RESET to enter download mode (back side) 13. MX1.25 2-Pin Speaker HeaderAudio signal output for connecting external speaker (back side) 14. IPEX1 ConnectorExternal antenna connector, enabled by resoldering onboard resistor 15. 22-Pin 2.54 mm Through-Hole PadsFor external module connection and functional expansion 16. Type-C PortUsed for program burning and log printing 17. PCF85063RTC clock chip with time-retention support Outline Dimensions ESP32-S3-Touch-LCD-3.49 ESP32-S3-Touch-LCD-3.49B Resources & Services Wiki: www.waveshare.com/wiki/ESP32-S3-Touch-LCD-3.49 Package Content Weight: 0.031 kg ESP32-S3-Touch-LCD-3.49 ESP32-S3-Touch-LCD-3.49 x1 ESP32-S3-Touch-LCD-3.49B ESP32-S3-Touch-LCD-3.49B x13.7V Lithium polymer battery x1