ElecFreaks
OV7670 Camera Module
The OV7670 is a compact VGA camera module based on the OmniVision OV7670 image sensor. It provides a single-chip VGA camera and image processor capable of up...
The OV7670 is a compact VGA camera module based on the OmniVision OV7670 image sensor. It provides a single-chip VGA camera and image processor capable of up to 30fps at 640×480 resolution, with multiple output formats including RGB565, YUV, and raw RGB.
Controlled via the SCCB interface (I²C compatible), the sensor offers full control over image quality including gamma correction, white balance, saturation, and sharpness. Built-in ISP functions handle automatic exposure, gain control, white balance, and noise reduction.
Key Features
- VGA Resolution – 640×480 at up to 30fps
- Multiple Output Formats – RGB565/555/444, YUV/YCbCr 4:2:2, GRB 4:2:2, Raw RGB
- SCCB/I²C Interface – Full control over image processing parameters
- Built-in ISP – Automatic exposure, gain, white balance, noise reduction, and dead pixel compensation
- Low Power – 60mW at 15fps VGA YUV, <20µA sleep mode
- Flexible Resolution – Supports VGA, CIF, and sub-sampled sizes down to 40×30
- 50/60Hz Detection – Automatic flicker elimination
Specifications
- Sensor: OV7670
- Resolution: 640 × 480 (VGA)
- Max Frame Rate: 30fps (VGA)
- I/O Voltage: 2.5–3.0V (internal 1.8V LDO)
- Pixel Size: 3.6 × 3.6 µm
- Optical Size: 1/6"
- Field of View: 25°
- Sensitivity: 1.3V/(Lux·sec)
- SNR: 46dB
- Dynamic Range: 52dB
- Scan Mode: Progressive
- Operating Temperature: −30°C to 70°C
Ideal For
- Embedded vision and image capture projects
- Arduino and microcontroller camera applications
- Learning image processing and computer vision basics
- Low-power surveillance and monitoring
Jargon buster
Plain-language definitions for the technical terms used above.
- dynamic range
- Dynamic range describes how wide a span of values a sensor can measure, from very low to very high. For a light sensor, a wide dynamic range means it can work in dim indoor settings as well as bright sunlight without changing hardware.
- ISP
- An image signal processor is hardware that helps process raw camera data into usable images or video. It matters for vision projects because it can improve camera handling and reduce the processing load on the main CPU.
- lux
- Lux is the standard unit for measuring how much light falls on a surface, similar to how a light meter reports brightness. A sensor that outputs lux gives readings that are easier to compare between rooms, outdoor conditions, and different projects.
- microcontroller
- A microcontroller is a small computer on a chip that runs your program and controls connected inputs and outputs. For this product, it is the part that reads buttons and sensors, drives the display and speaker, and communicates over Bluetooth.
- RGB
- Short for red, green and blue, usually referring to an LED that can mix those three colours. It matters because controlling an RGB LED teaches how separate outputs combine to create different colours.
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