> For the complete documentation index, see [llms.txt](https://jordan-cormack.gitbook.io/stuff/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://jordan-cormack.gitbook.io/stuff/pcbs/can-power-splitter.md).

# CAN Power Splitter

A splitter board for power distribution and CAN splitting for robotics and remote vehicles/UxVs, allowing a single CAN and power connection to be split to multiple devices, including dedicated 5V regulation for CAN connections.

The JST-GH connectors are compatible with common Ardupilot and PX4 hardware, as per the UAVCAN Micro and Dronecode Autopilot Connector Standards.

Although this PCB was designed specifically for applications like robotics and rovers with CAN bus motors, actuators, and sensors, it can also be used without the CAN connections as a power distribution and 5V regulator board only.

Other 2 wire protocols that support multiple devices, such as i2c, would also be compatible with this board.

## Latest Version (V2)

<figure><img src="/files/Q19llElK5cWaJkAJAj28" alt=""><figcaption></figcaption></figure>

Features:

* 1x power input (XT30-M)
* 5x <mark style="color:$danger;">unregulated</mark> power outputs (4x XT30-F, 1x 2.54mm pads)
* 1x CAN input\* (JST-GH)
* 5x CAN output\* (4x JST-GH, 1x 2.54mm pads)
* 5V regulated output on JST-GH. 1.5A continuous, 3A with cooling (total).
* 60V (14S) input <mark style="color:red;">(only tested up to 25V or 6S)</mark>
* LED power indicator
* 30.5mm x 30.5mm M3 mounting holes
* optional CAN termination
* optional 5V supply to CAN input connection

\*the CAN 'input' shares the same connector as the 'outputs', but by default the 5V pin is disconnected. Using the solder bridge on the rear of the PCB, this pin can be reconnected, to enable power to be outputted on that connector. All CAN high and CAN low signals are directly connected between all connectors.

There is an onboard 120Ω termination resistor with a jumper to enable it.

<figure><img src="/files/BZrotA8dCv4GmVnrnBhX" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/bM0RKD8PaE4hhqhJuUbr" alt=""><figcaption></figcaption></figure>

### To do:

* Test full voltage input range (up to 60V or 14S)
* Main power testing - 20A continuous?
* 5V regulator power testing - max continuous?


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://jordan-cormack.gitbook.io/stuff/pcbs/can-power-splitter.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.