> For the complete documentation index, see [llms.txt](https://nxp.gitbook.io/nxp-cup/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://nxp.gitbook.io/nxp-cup/2025-fall-2026-nxp-cup-mcxn947/assembly-and-hardware/electrical-connections/frdm-mcxn947/pixy2-header.md).

# Pixy2 Header

The Pixy2 header is located on the back of the camera.

<figure><img src="https://2412084329-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-L9GLtaxrQtBdBRsFIJB%2Fuploads%2FA0X660YdEFhl21hI4N9b%2Fimage.png?alt=media&amp;token=203fa53d-a9c6-4c85-8b07-75832d7baae2" alt=""><figcaption></figcaption></figure>

You only need to connect 4 pins here:

* <mark style="color:red;">**5V**</mark> – You will supply a positive DC voltage (usually 5 volts) to this terminal to power the device.
* <mark style="color:$info;">**GND**</mark> – Ground terminal for the negative DC charge. This must be connected to the common ground of your entire circuit to ensure proper operation.
* <mark style="color:green;">**SCL**</mark>**&#x20;(Serial Clock Line)** – This pin carries the clock signal generated by the master device in an I²C communication setup. It synchronizes data transfer between the master and slave devices.
* <mark style="color:yellow;">**SDA**</mark>**&#x20;(Serial Data Line)** – This pin is used for bidirectional data transfer in I²C communication. It carries the actual data being transmitted between devices.