Equipped with high-performance Xtensa 32-bit LX7 dual-core processor, the main frequency is up to 240MHz Supports 2.4GHz Wi-Fi and Bluetooth 5 (LE), onboard internal antenna, reserved solder joints, can be set as external antenna Built-in 512KB SRAM and 384KB ROM, stacked 16MB Flash and 8MB PSRAM Onboard 1.43-inch AMOLED display, 466 x 466 resolution, 16.7M color AMOLED screen display uses QSPI interface, touch uses I2C interface, capacitive touch, supports interrupt output 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 side buttons, BOOT Supports custom button functions, making development and use more flexible Onboard 3.7V MX1.25 lithium battery charging and discharging interface Onboard Micro-SD card slot, can be connected to an external Micro-SD card to store pictures or files Onboard USB Type-C interface, can be used for power supply and download debugging, convenient for development and use UART and I2C SH1.0 4PIN interface is introduced, and 2 x 14PIN 1.27mm spacing interface is reserved Display panel: AMOLED Display resolution: 466 x 466 Communication interface: QSPI Touch: Supported Display size: 1.43 inches Display color: 16.7M Contrast ratio: 60000:1 Driver IC: SH8601/C05300 Touch IC: FT3168 The product appearance and printed words may vary depending on the batch, but this does not affect use. Specification:A:without shell/B:with shell Colour:Black Material:PCB+CNC<br><br>Package Contents: 1 * AMOLED Display Kit 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.