Equipped with ESP32-S3R8 high-performance Xtensa 32-bit LX7 dual-core processor, with a main frequency of up to 240MHz Supports 2.4GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5 (LE), onboard antenna Built-in 512KB SRAM and 384KB ROM, stacked with 8MB PSRAM and external 16MB Flash Onboard 1.9-inch LCD screen, 170x320 resolution, 262K color, can clearly display color pictures Onboard QM18658 six-axis inertial measurement unit (3-axis acceleration, 3-axis gyroscope) can detect motion posture and expand applications; Onboard USB Type-C interface for power supply and download debugging, convenient for development and use; Onboard 3.7V MX1.25 lithium battery charging and discharging interface; Onboard Micro-SD card slot for external SD card connection to store pictures or files; Onboard Pico compatible interface for strong compatibility and scalability This product uses the ESP32-S3R8 chip, supports 2.4GHz Wi-Fi and BLE5 Bluetooth functions, integrates large-capacity Flash and PSRAM, and has an onboard 1.9-inch LCD display. The product appearance and printed words may vary depending on the batch, but this does not affect use. Color: As Shown Material: PCB+LCD Package Contents: 1*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.