<p>Equipped with high-performance Xtensa 32-bit LX7 dual-core processor, with a main frequency of up to 240MHz.</p> <p>Supports 2.4GHz Wi-Fi and Bluetooth 5 (LE), onboard internal antenna, reserved solder joints, can be set as external antenna.</p> <p>Built-in 512KB and 384KB ROM, stacked with 16MB Flash and 8MB PSRAM.</p> <p>Onboard 1.64-inch AMOLED capacitive touch screen, 280x456 resolution, 16.7M colors.</p> <p>AMOLED screen display uses QSPI interface, capacitive touch uses I2C interface.</p> <p>Onboard QM18658 six- inertial measurement unit (3- acceleration, 3- gyroscope) can detect motion posture, step counting, etc.</p> <p>Onboard , BOOT side buttons, BOOT supports custom button functions, making development and use more flexible.</p> <p>Onboard 3.7V MX1.25 lithium battery charging and discharging interface.</p> <p>Onboard Micro-SD card slot, can be connected to an external SD card to store pictures or files.</p> <p>Onboard USB Type-C interface, can be used for power supply and download debugging, convenient for development and use.</p> <p>Exposed I2C, UART and USB pins for external devices and debugging, flexible configuration of peripheral functions.</p> <p>The screen adopts CNC processing structure and edge bonding, with delicate and soft texture, and the overall appearance is beautiful and .</p> <p>(The product appearance and printed words depending on the batch, but this does not affect use)</p> <p>Color: As Shown</p> <p>Material: PCB+LCD</p> <p>Package Contents:</p> <p>1 * 1.64-inch Touch Screen</p> <p>Only the above package content, other products are not included.</p> <p>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.</p>