Equipped with ESP32-S3R8 high-performance Xtensa 32-bit LX7 dual-core processor, the main frequency is up to 240 MHz Supports 2.4 GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5 (LE), onboard antenna. Built-in 512KB SRAM and 384KB ROM, stacked 8MB PSRAM and external 16MB Flash Using Type-C interface, keep up with the trend of the times, no need to worry about whether to insert it forward or backward Onboard 1.69-inch LCD screen, 240x280 resolution, 262K color, can clearly display color pictures Built-in ST7789V2 driver chip, using SPI does not occupy too many interface pin resources Onboard QMI8658 six-axis inertial measurement unit (3-axis acceleration, 3-axis gyroscope), can detect motion posture, step counting, etc. Onboard PCF85063 RTC chip, reserved SH1.0 battery slot (supports charging) can easily realize RTC function requirements Onboard RST, BOOT and a side button with customizable functions, convenient for custom function development using buttons Onboard 3.7V MX1.25 lithium battery charging and discharging interface Lead out 5 GPIO, I2C and UART pads for external devices and debugging, flexible configuration of peripheral functions Support flexible clock, module power separate setting and other precise control, realize multi-scenario low power mode 1.69-inch compact screen: With 262K IPS color panel, 240x280 resolution, Easily cope with various scenes. Different batches may have different appearances, which will not affect the use; different light or display may cause color difference in the actual product Colour:Black Material:PCB+Plastic Package Contents: 1x display screen 1x cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.