I designed and built a LCC node for 18 inputs. This node will primarily be used for block occupancy detection. I designed and built a block detection board to go with the LCC input node for 6 blocks based on Prof Chaos' design. The second LCC node is for 16 outputs that will control the Tortoise switches and all the accessories. RR-CirKit LCC nodes are used for the block signal logic. The RR-Cirkit LCC signal nodes have very sophisticated signal logic that would be very hard to duplicate and test. The RR-Cirkit USB buffers and power sources are also being used. All the nodes were designed using DIPTrace and PCB boards made by PCBway. I had a test bench simulating a small layout with 2 siding working properly. A wall cabinet fell of my garage wall onto the test bench. When I complete the project of upgrading the garage cabinets I will post pictures of the the nodes and a video of the working nodes in the test bench. I still think that LCC infrastructure the best and cheapest way to automate a layout.