The camera pinout on Raspberry Pi boards is a crucial detail for anyone working with camera modules. Whether you’re using the traditional 15-pin connector or the newer 22-pin version, knowing how each pin functions helps you connect devices correctly. This article outlines the pin layout, what each pin does, and how to use the right connector for your board and camera.
Introduction
Raspberry Pi camera pinout boards support camera modules through a Camera Serial Interface (CSI), which is used to send data between the camera and the processor. Getting the connections right is key to making sure the camera functions properly. The CSI port can have either 15 or 22 pins, depending on the model of the board.
Types of Camera Connectors
Most earlier Raspberry Pi boards like the Pi 3 Model B come with a 15-pin CSI connector. The newer models, including the Raspberry Pi 5, often use a 22-pin interface. Some camera modules also have matching 15-pin or 22-pin connectors. Using a compatible ribbon cable is necessary to link the camera to the board.
15-Pin CSI Connector Layout
The 15-pin connector layout on a Raspberry Pi includes the following:
2 lanes for data signals (CSI data0 and data1)
2 clock signals (CSI clock)
I2C communication pins for camera control (SCL and SDA)
Power supply pins (3.3V and GND)
These pins are arranged in a specific order and should be matched correctly to the camera module.
22-Pin CSI Connector Layout
The 22-pin version includes similar functions but provides more connections for advanced features. These include:
Extra data lanes for higher-resolution camera modules
Additional ground pins for signal stability
More power supply lines for larger or dual cameras
This layout is commonly found on the Raspberry Pi 5 and newer camera boards like the High Quality Camera or Camera Module 3.
Matching Boards and Cameras
It’s important to make sure that your board and camera module use the same type of connector. If not, adapter boards or conversion cables are available. These adapters help convert a 15-pin cable to a 22-pin or vice versa. Always check the pinout before plugging in to avoid damaging the hardware.
Avoiding Common Mistakes
Incorrectly inserting the ribbon cable or connecting mismatched pins can result in the camera not being detected or even hardware failure. Make sure the cable is inserted with the metal connectors facing the correct side, and ensure a firm but careful fit into the CSI port.
Conclusion
Working with the Raspberry Pi camera pinout requires attention to detail. Whether using a 15-pin or 22-pin connector, knowing what each pin does helps avoid connection issues. Before starting your project, check both your camera module and your Raspberry Pi board to ensure they are properly matched.
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