is there a way to configure a circuit signal to detect weight?
would be very useful for mixed cargo and remote launches.

I don't think there's currently any way to do that. Launching when a certain weight threshold is met could be a worthwhile feature to add. I don't have a lot of time for mod development these days but it's something I'll keep in mind for the future.

This sounds like a great idea.

@S6X Since you mentioned you're short on time, I may be able to implement it for you since it seems fitting to be in this mod.
If you're open to it, I could do the coding and submit a pull request if you were to upload the source code to a GitHub repository.

Thanks for the offer but I have more time for modding now so I should be able to get to this soon!

Looking forward to your updates!

This has been added!

Nice! Until this got added, I used my own (private) mod to output an additional weight signal from rocket silos, but this seems like a more streamlined approach for a simpler circuit network. Nice work!