The RS232 module is a highly integrated serial camera board that can be attached to a wireless or PDA host performing as a video camera or a JPEG compressed still camera. It provides a serial interface (RS-232) and JPEG compression engine to act as a low cost and low powered camera module for high resolution serial bus security system or PDA accessory applications. B. Features 1. Small in size, low cost and low powered (3.3V) camera module for high resolution serial bus security system or PDA accessory applications. 2. On-board EEPROM provides a command based interface to external host via RS-232. 3. UART: 115.2Kbps for transferring JPEG still pictures or 160x128 preview at 8bpp with 0.75fps. 4. On board OmniVision OV7640/8 VGA color sensor. 5. Built-in JPEG CODEC for different resolutions. 6. Built-in down sampling, clamping and windowing circuits for VGA, QVGA, 160x120 or 80x60 image resolutions. 7. Built-in color conversion circuits for 2-bit gray, 4-bir gray, 8-bit gray, 8-bit RGB, 12-bit RGB, 16-bit RGB or standard JPEG preview images. 8. No external DRAM required.