<rant> Probably a stupid question, because the answer must be obvious with just a bit of googling. Alas, I haven't found it yet, hence this post. I came across this: https://github.com/openlcb/documents/find/master , and I figured out that if I type '/standards/pdf' into the search field, I get a bunch of pdf files, but it's not exactly what I would consider structured and readable (e.g., no links from the 'executivesummary.pdf' to anything else.) There is an index.html, but it is rendered as html source code in my browser, which actually makes sense, since this is github, and tells me these are not the droids I'm looking for.... Similarly, I came across this here: http://old.openlcb.org/trunk/documents/FirstLookDescription.html , but the 'old' in the name seems to be a dead giveaway that this is probably not current. https://openlcb.org/ advertises some book, https://openlcb.org/openlcb-and-lcc-documents/layout-command-control-lcc/ is again an unstructured list of files (technical notes and standards), and https://openlcb.org/about-openlcb/introduction-to-openlcb/ is a bit less detailed and technical than what I'm looking for; the links dead-end in some glossary. Searching JMRI for LCC leads to this: https://www.jmri.org/help/en/html/hardware/can/index.shtml , which looks promising, but might also contain dead ends. The NMRA website has documents similar to openlcb.org, but the last of those are from 2016: https://www.nmra.org/lcc It feels a bit like standing in a maze of twisty little passages, all different... </rant> Is there a description of LCC, maybe with an Arduino or RPI implementation example that interacts with JMRI (I assume LCC should integrate with JMRI?), somewhere?