Adopts ESP32-S3R8 chip with 2.4GHz WiFi and Bluetooth BLE 5 support, integrates high-capacity Flash and PSRAM. Onboard 1.43inch AMOLED display which can smoothly run GUI programs such as for LVGL. Onboard rich peripheral resources such as RTC chip, QMI8658 6-axis IMU, TF card slot, Lithium battery header, etc., and reserved USB, UART, I2C and GPIO pin headers, offering strong compatibility and expandability. It is suitable for the quick development of the HMI and other ESP32-S3 applications. Equipped with high-performance 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 an onboard antenna. Supports switching to use external antenna via resoldering an onboard resistor.<br><br>Built-in 512KB SRAM and 384KB ROM, with onboard 16MB Flash and 8MB PSRAM Onboard 1.43inch AMOLED display, QSPI interface, 466 x 466 resolution, 16.7M color Supports capacitive touch function controlled via I2C interface, with interrupt support Onboard QMI8658 6-axis IMU (3-axis accelerometer and 3-axis gyroscope) for detecting motion gestures, counting steps, etc. Onboard PCF85063 RTC chip with reserved SH1.0 RTC battery header (supports charging) for RTC function requirement Onboard RST button and programmable BOOT button for easy custom function development Onboard 3.7V MX1.25 Lithium battery recharge/discharge header Onboard TF card slot for external TF card storage of pictures or files Onboard USB Type-C port for power supply, program downloading, and debugging, more convenient for development use Onboard UART and I2C SH1.0 4PIN connector, reserved 2 x 14PIN 1.27mm pitch headers, adapting multiple GPIO interfaces CNC metal case, with clear and colorful label on the back, nice looking and easy to carry Note:due to different production batches, the printing screen printing/appearance is different, which does not affect the use.