> For the complete documentation index, see [llms.txt](https://docs.holybro.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.holybro.com/autopilot/pixhawk-baseboards/pixhawk-rpi-cm4-baseboard/pm03d-rpi-cm4-base-wiring-guide.md).

# PM03D - RPi CM4 Base Wiring Guide

{% hint style="warning" %}
To ensure stable power supply, the RPi CM4 & Flight controller must be powered separately. 

Flight controller is powered via the CLIK-Mate cable to POWER1 or POWER2 port, and RPi CM4 is powered by the USB C (CM4 Slave) connection.
{% endhint %}

<figure><img src="/files/KagxfCPgNWFvqQrUGVqe" alt=""><figcaption></figcaption></figure>


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