Raspberry Pi camera pinout boards support camera integration through their CSI interface. To connect a camera properly, it’s important to refer to the correct pinout layout. Each Raspberry Pi model may feature a different pin configuration, so referencing the right diagram ensures compatibility and avoids connection issues. This article covers the basic layout of the camera pinout, the differences between 15-pin and 22-pin connectors, and how to set up the hardware.
Introduction
Raspberry Pi camera modules are widely used in DIY electronics, surveillance, and embedded vision projects. The connection between the camera and the board is made through the CSI (Camera Serial Interface) connector. However, not all Raspberry Pi models share the same pin layout or connector type. Understanding the correct camera pinout helps avoid hardware failures and saves time during setup.
Different Connector Types on Raspberry Pi Boards
Most Raspberry Pi models use either a 15-pin or a 22-pin MIPI CSI connector. Older models like the Raspberry Pi 3 and 4 typically feature the 15-pin connector. Newer boards such as the Raspberry Pi 5 have transitioned to a 22-pin FPC connector to support higher data rates and additional features.
Pin Configuration for 15-Pin CSI Connector
The 15-pin connector is arranged in a single row and includes signals for I2C, power, ground, and differential pairs for data transfer. Typical pin assignments include:
Pin 1: Ground
Pin 2: Camera Data Lane 0+
Pin 3: Camera Data Lane 0−
Pin 4: Ground
Pin 5: Camera Clock+
Pin 6: Camera Clock−
Pin 7: Ground
Pin 8: Camera Data Lane 1+
Pin 9: Camera Data Lane 1−
Pins 10–15: Various control and power signals
This layout supports cameras like the official Raspberry Pi Camera Module V2.
Pin Configuration for 22-Pin CSI Connector
The 22-pin connector offers more signal lines and is mainly used in boards like the Raspberry Pi 5 or Compute Module I/O boards. The pinout includes:
Additional data lanes for dual camera setups
Dedicated power supply lines (1.8V and 3.3V)
Separate clock and I2C communication pins
This configuration supports newer camera modules and provides a wider data path, allowing for higher-resolution video and frame rates.
Connecting the Camera Module
Before connecting the ribbon cable, power off the Raspberry Pi. Gently insert the ribbon cable into the CSI port with the contacts facing the correct direction, then lock the connector in place. Once the board is powered on, software tools like raspi-config or libcamera can be used to activate and test the camera module.
Using Adapter Boards for Compatibility
If your camera module and Raspberry Pi board use different connectors, you may need an adapter board. For instance, a 22-to-15-pin adapter allows a 15-pin camera to work with a Raspberry Pi 5. These boards maintain signal integrity and allow older accessories to be reused with newer models.
Conclusion
Working with Raspberry Pi camera pinout modules starts with identifying the correct pinout for your board. Whether you're using a 15-pin or 22-pin connector, having the right pin mapping ensures that your camera communicates properly with the processor. Always refer to official documentation or tested diagrams when wiring your setup.
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