Severson-Group / Severson-Group/docs.amdc.dev
Undocumented 24V gpio pin
@AwesomeTornado is already working on this.
Since Aug 7, 2026.
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Description
Context
GPIO pin 6 is at +24V relative to ground. In the documentation, this pin is listed as not connected. It is very important that people understand that this pin is not left floating, and that it is in fact a moderate voltage, moderate current (250mA) supply pin.
Related Issues / PRs: (To do: list all related issues)
Approach
Close this issue with a PR that fixes the GPIO reference article.
Also, in REV D there were only 2 gpio pins, but in REV E and F it looks like there are 3 based on the direct pin assignment commands. Investigate where this third gpio pin is, and document it.
- Fix pin 6 NC->24V
- Figure out where GPIO pin 3 is
- Test GPIO pin 3 functionality
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Assessment
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