Onboard:SD card slot. Battery:CR1220. Wireless Communication:NRF2401 Interface. Data storage:W25Q16. Support FMSC LCD Interface. Multi-user keys. All the CPU-10 lead. 2.54mm integer multiples spacing pin. STM32F407VET6:the high performance STM32 MCU which. Core: - 32-bit RISC. Feature:a full set of single-cycle instructions. Operating Frequency: 168MHz, 210 DMIPS/1.25 DMIPS/MHz. Operating Voltage: 1.8V-3.6V. Package: LQFP100. Storage Resources: 512kB Flash, 192+4kB Resource: 3 x SPI, 3 x USART, 2 x UART, 2 x I2S, 3 x I2C; 1 x FSMC, 1 x SDIO, 2 x CAN; 1 x USB 2.0 / Controler(with DMA); 1 x USB ULPI; (used for external USB PHY)1 x 10/100 Ethernet ; 1 x 8 to 12-bit parallel camera interface; 3 x AD(12 bit,1us), 2 x DA(12 bit) Display type:TFT 3.2. Driver IC:ILI9341. Operating Temp.:-20℃-70℃. Storage Tem.:-30℃-80℃. General Tolerance: plusmn0.2. Display resolution: [240xRGB](H) x 320(V) Output: 720 source outputs, 320 gate outputs. Common electrode output (). a-TFT LCD driver with on-chip full display RAM: 172,800 bytes. Due to different product batches, the appearance , which does not affect the use. System Interface: 8-bits, 9-bits, 16-bits, 18-bits interface with 8080-I/8080-1I series MCU 6-bits, 16-bits, 18-bits RGB interface with graphic controller 3-line/4-line serial interface Display mode: Full color mode (ldle mode OFF):262K-color (selectable color depth mode by software) Reduce color mode (Idle mode ON):8-color Power saving mode: Sleep mode On chip functions: generator and adjustment Timing generator Oscillator DC/DC converter Line/frame inversion 1 preset Gamma curve with separate RGB Gamma correction Content Adaptive Brightness Control (3 times): 8-bits for ID1, ID2, ID3 7-bits for adjustment Low-power consumption architecture Low operating power supplies: VDDI=1.65V-3.3V (logic) VCI=2.5V-3.3V (ana