What it is and why you need it A compact microcontroller development board that combines 2.4 GHz WiFi (802.11 b/g) and Bluetooth 5 (BLE 5) with an onboard antenna, plus a 1.46inch touch LCD for ondevice interaction. It enables rapid development of HMI and IoT applications using LVGL and GUI interfaces. Built around the ESP32 S3R8 performance Xtensa 32 bit LX7 dual core processor with up to 240 MHz, offering strong processing for embedded GUI, sensing, and control tasks. It integrates large storage and memory options, a touch display, wireless connectivity, motion sensing, and RTC to support robust, portable prototypes and field deployments. Core specifications Wireless and connectivity: 2.4 GHz Wi Fi (802.11 b/g) and Bluetooth 5 (LE), with onboard antenna. Processor: ESP32 S3R8, Xtensa 32 bit LX7 dual core, up to 240 MHz. Memory and storage: onboard 8 MB PSRAM, 16 MB Flash; built in 512 KB and 384 KB ROM. Display: onboard 1.46 inch LCD, resolution 412 x 412, 16.7 million colors; supports touch interface with interrupt capability. Interfaces: UART and additional IO interfaces exposed for expansion. Storage, power, and operation Onboard Micro SD card slot for extended storage and fast data transmission; supports flexible clocking, multiple power modes, and accurate control for multi scenario low power operation. Type C interface for improved user convenience and device compatibility. Two side buttons PWR and BOOT for user defined functions. 3.7 V lithium battery charging and discharging interface (MX1.25). Sensors and timekeeping Onboard QMI8658 six axis IMU (3 axis accelerometer and 3 axis gyroscope) for motion detection, posture sensing, and step counting. PCF85063 real time clock (RTC) chip; can maintain RTC function with an external battery, RTC continues when main battery is replaced. Peripherals and display integration Onboard 1.46 inch touch LCD, enabling GUI applications such as LVGL to run smoothly. Supports convenient access to expansion devices via exposed interfaces and UART. Applications and use scenarios Human Machine Interface (HMI) development: Rapid GUI prototyping for embedded systems using LVGL on ESP32S3. Portable data logger and media playback: Micro SD storage enables recording, logging, and offline media handling with low power operation modes. Motion aware prototypes: Six axis IMU supports motion posture tracking, step counting, and activity monitoring for wearable or robotics projects. Smart device controller or IoT gateway: Combines wireless connectivity, local display, storage, and multiple IOs for edge computing and device control. Key advantages and standout points All in one board integrates wireless connectivity, substantial memory and storage, a color touch display, IMU, RTC, and flexible power options. LVGL friendly with a built in touch LCD for smooth GUI driven development. Versatile power and clock options enable low power operation across multiple scenarios. Rich peripheral support and expansion potential through UART and IO interfaces. Important notes All specifications are as described: 2.4 GHz Wi Fi (802.11 b/g), Bluetooth 5 LE, onboard antenna; ESP32 S3R8 processor up to 240 MHz; 8 MB PSRAM, 16 MB Flash, 512 KB and 384 KB ROM; 1.46 inch LCD 412x412 16.7M color; Micro SD slot; QMI8658 IMU; PCF85063 RTC; PWR and BOOT buttons; 3.7V MX1.25 battery charging interface.