Feature: 1. The dual-camera development board is mainly used for MCU development and image acquisition. 2. Combining two kinds of high‑pixel cameras on one board provides a low‑cost image gathering. 3. The USB interface directly downloads the program, and the secure digital memory card reads the picture file, which is more time‑saving and efficient. 4. Equipped with a 2.8in TFT touch screen with a multi‑function adapter board, more convenient to access and export signals. 5. Provide external 3.3V and 5V power supply, which can supply power to external devices or printed circuit board. Specification: Item Type: Development Board Material: Synthetic Cardboard Purpose: MCU development and image acquisition MCU: STM32F103RCT6 Power Supply: 5V DC power supply or USB power supply Debug Port: JTAG/SWD Mode (JTAG is used in the case of multiplexed debugging pins), supports online download and simulation USB Serial Download: Onboard CP2102 imported USB to serial downloader, can download HEX files directly, which is convenient to use E2ROM: Interface I2C Crystal Oscillator: 8M main chip clock, and RTC clock chip Memory Card Socket: MINISD card, SPI interface mode LCD Screen: 2.8in TFT touch screen with multi-function adapter board USB Interface: One is USB to serial port, the other is USB communication port Camera: OV7670 camera with FIFO + 200W pixel OV2640 camera module Chip IO Lead Interface: All IO leads, easy to use External Power Supply Interface: Provide external 3.3V and 5V power supply, which can supply power to external devices or PCB boards Buttons: One reset button and two customer buttons BOOT Jumper: used when downloading and program running LED Light: 3Pcs, can realize frame signal indication and marquee and other functions. Package List: 1 x Development Board1 x USB Data Cable