The OV2640 is a 1/4 inch CMOS QSXGA (1600x1200) image sensor from OmniVision Technologies. It provides full-frame, sub-sampled, windowed image or 10-bit raw output via its digital video port (DVP). It is a versatile and widely used sensor known for its balance of image quality, power efficiency, and cost-effectiveness.

Applications:

• Mobile Phones: Commonly found in older generation camera phones and feature phones.
• Security Cameras: Suitable for basic surveillance systems needing adequate resolution.
• Embedded Systems: Integrated into various embedded vision applications like barcode scanners and simple machine vision systems.
• Toys and Educational Tools: Used in robotics kits and educational projects involving image capture.

Features:

• QSXGA Resolution (1600x1200): Captures detailed images for its size and cost.
• Digital Video Port (DVP) Output: Standard interface for easy integration with processors and FPGAs.
• Automatic Image Control Functions: Includes automatic exposure control (AEC), automatic gain control (AGC), automatic white balance (AWB).
• Programmable Controls: Allows adjustment of image quality parameters for specific applications.
• Low Power Consumption: Efficient power usage suitable for battery-powered devices.

Benefits:

• Good Image Quality for its Class: Offers a reasonable balance between resolution and image quality for its price point.
• Easy Integration: The DVP interface simplifies connecting to a wide range of processing platforms.
• Reduced Development Time: Automatic image control functions minimize the need for complex image processing algorithms.
• Lower System Cost: Provides a cost-effective solution for image capture in various applications.

Technical Specifications:

The OV2640 operates at 1.7V for the core and 2.5-3.0V for I/O. It supports various output formats, including YUV, RGB, and Raw RGB data. It can capture video at up to 15 frames per second at QSXGA resolution and higher frame rates at lower resolutions. The sensor also includes a built-in lens shading correction feature to improve image uniformity. Detailed register settings and example code are often available to facilitate integration and customization.