Equipped with ESP32-S3R8 high-performance Xtensa 32-bit LX7 dual-core processor, the main frequency up to 240 MHz Support 2.4 GHz Wi-Fi (802.11b /g) and Bluetooth 5 (LE), onboard antenna,Built-in 512KB and 384KB ROM, stacked 8MB PSRAM and external 16MB Flash Type-C interface, keep up with the trend of , no need to the positive and negative plug On-board 1.69-inch capacitive touch LCD screen, 240x280 resolution, 262K color, can clearly display color pictures Built-in ST7789V2 driver chip and CST816T capacitive touch chip, respectively using SPI and interface communication, do not occupy too much interface pin resources Onboard QMI8658 six- inertial measurement unit (3- acceleration, 3- gyroscope), can detect motion attitude, step counting, etc Onboard PCF85063 RTC chip, reserved 1.25 RTC battery slot (support charging), can facilitate the realization of RTC functional requirements On-board , BOOT and a side button with customizable functions for easy use of buttons for custom function development Onboard 3.7V MX1.25 lithium battery charging and discharging interface Four GPIO, and UART pads are extracted, which can be used for external equipment and debugging, and can be flexibly configured with peripheral functions Support flexible clock, module power supply setting and other accurate control, to achieve multi-scene low-power mode Touch screen has high transmittance, fast response and Note: Do not include Controller boards or Host Different batches may have different appearances, which not affect the use; different light or display may cause color difference in the actual product Colour:Black Material:PCB+Plastic Package Contents: 1 x ESP32-S3 1.69inch Touch screen Development Board 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.