Description: Dual camera isolation multiplex bus, control more easily, which also need to provide more camera applications for customers with a hardware reference; To change the serial port to download the device,with CP2102, direct support win8, win7, linux and other system downloads; The emulator can be used in any case, Resulting in some of the procedures can only use the serial port to download the trouble; To reduce the board jumper, increase the ease of application; Support the case of direct download Specification: Size: Approx. 140x 93x 17mm / 5.51x3.66x0.67inch MCU: STM32F103RCT6 Core: Cortex-M3 32-bit RISC Operating Frequency: 72MHz, 1.25 DMIPS/MHz Operating Voltage: 2-3.6V Package: LQFP64 I/Os: 51 Memories: 256kB Flash?48kB RAM Communication Interfaces: 2 x SPI, 5 x USART, 2x I2S, 2 x I2C, 1x SDIO, 1 x USB, 1 x CAN AD & DA converters: 3 x AD (12-bit, 1 µs, shares 16 channels) Debugging/Programming: supports JTAG/SWD (serial wire debug) interfaces, supports IAP Power supply switch: 5V DC or USB Debug port: JTAG / SWD mode (JTAG in the case of multiplexing debugging pin), support online download and simulation; USB serial download: onboard CP2102 import USB 8M main chip clock, RTC clock chip each one; SD card: MINISD card, SPI interface mode; E2ROM: interface I2C Crystal: 8M main chip clock, RTC clock chip one; LCD screen: 2.8-inch TFT touch screen with multi-function adapter board; USB interface 2: one for the USB to the serial port, a usb communication port; Wireless transmission interface: connect 433M wireless serial port transparent transmission module, Data wireless exchange; Camera interface: 30W pixel camera OV7670 with fifo module interface, a 30W HD camera OV7725 or 200w camera OV2640 camera interface one; Chip IO leads to the interface: all IO leads to facilitate the use of External power Power supply interface: to provide external 3.3V and 5V power supply, external devices or PCB board can be powered; Keys: reset button and a 2 customer button; BOOT jumper: download and program running so that ; LED lamp: 3, and a signal indicative of a frame may be implemented functions marquees Package Includes: 1 Piece of board 1 Piece of screen 1 Piece of USB cable 1 Piece OV7670FIFO Camara Module 1 Piece OV2640 Camara Module