Raspberry Pi boards use CSI connectors to connect camera modules directly. Depending on the model, these connectors may follow a 15-pin or 22-pin layout. Knowing the right pin configuration helps users link camera modules properly and avoid hardware mismatches. This article offers a detailed breakdown of the Raspberry Pi camera pinouts and how to work with them across different models.
Overview of Raspberry Pi Camera Connections
The Raspberry Pi camera pinout includes a CSI (Camera Serial Interface) port designed specifically for attaching camera modules. These modules connect using a flat cable that plugs into the CSI socket on the board. Depending on the model, the board may use either a 15-pin or 22-pin connector.
CSI Connector Types Used on Raspberry Pi
Earlier models like the Raspberry Pi 3 and Raspberry Pi 4 typically use a 15-pin CSI connector. In contrast, newer boards such as the Raspberry Pi 5 and Raspberry Pi Zero 2 W come with a 22-pin connector that supports more advanced features and bandwidth.
Pin Layout of the 15-Pin CSI Connector
The 15-pin connector includes:
Ground (GND)
Camera clock signals
Camera data lanes
I2C control lines (SDA and SCL)
Power outputs (3.3V and 1.8V)
These pins are arranged in a single row, and a ribbon cable links the camera module to the Raspberry Pi.
Pin Layout of the 22-Pin CSI Connector
The 22-pin connector provides extra signal paths to support modern camera modules. These additional lines allow for faster data transfer and are ideal for high-resolution or dual camera configurations, which are becoming common in newer Raspberry Pi projects.
Choosing the Right Module for the Right Port
Before connecting a camera, it's essential to verify whether your Raspberry Pi uses a 15-pin or 22-pin connector. Connecting the wrong module without a proper adapter can cause hardware issues. Always match the pin type of the board and camera before powering the system.
Using Adapters to Connect Different Pin Types
If you need to connect a 15-pin camera to a board with a 22-pin connector—or the other way around—there are adapter boards available. These adapters adjust the pin mapping so the camera can function as intended, even when the physical connectors don’t match.
Basic Steps Before Installing the Camera
Here are some steps to follow:
Shut down the Raspberry Pi camera pinout before connecting any cables
Insert the ribbon cable with the correct orientation (usually indicated by the blue stripe)
Use raspi-config to enable the camera after booting
Once installed properly, the camera can be used in various projects like security systems, machine vision, or simple video capture setups.
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