Features: Brand new and high quality Equipped with ESP32S3R8 32-bit LX7 2 processor, with a main frequency of up to 240MHz. Supports 2.4GHz (802.11bgn) . 512KB and 384KB, with 8MB PSRAM and external 16MB. 1.69inch capacitive touch LCD screen, 240x280 resolution, 262K color, capable of displaying color clearly. ST7789V2 driver chip and CST816T capacitive touch chip, communicate respectively, without occupying too much resources. The QM18658 six inertial measurement unit (3axis acceleration, 3axis ) can detect motion attitude, step counting, etc. The PCF85063RTC chip with a reserved 1.25RTC battery slot (supporting charging), which can facilitate the implementation of function requirements. BOOT, and a customizable side button to use for function development. Board mounted 3.7VMX1.25 battery charging and discharging. Introduce 4 GPIO, and UART for external equipment and debugging, with configuration of functions. Supports control such clocks and individual module power, achieving low power consumption in multiple. Specifications: Component: Plastic Note: Please allow 0.5-1cm error due to manual measurement. please make sure you not mind before bid. Due to the differences between different monitors, the picture may not reflect the actual of the item. Package includes: 1PC 1.69inch LCD Display Module