Since you aren't likely matrixing a number of outputs into one input like the one on that image of the S100 board I posted here's a simpler suggestion. If you don't already have one buy a wire wrap tool and some 24g ww wire. https://jonard.com/hand-wrap-tool-wsu-tool?v=626
Then a simple header of this style. https://www.digikey.ca/en/products/detail/adam-tech/2PH2-18-UA/9831040 One side connected to the DB-15 important pins and the other to the OBD-2 connector. Instead of using shunt jumpers just run the WW wire between the two sides. Reliable and still easy to change if you need to. And if you have several configurations that you need to change make a number of small PC boards with the socket on it and on the back of it solder the jumpers in the pattern you need. Now just swap in which PC board you pattern you are using. > -----Original Message----- > From: andy pugh [mailto:bodge...@gmail.com] > Sent: July-12-22 2:40 AM > To: Enhanced Machine Controller (EMC) > Subject: [Emc-users] Matrix Wiring > > Not CNC related, but I thought that someone here might know the answer. > > I want to make a rewirable adaptor (OBDII to DB15) > > One neat way to do this would be with a matrix, where you plug something > into holes and that connects the row to the column. > > As a CNC link (almost) I think that something like this was used on the MEC > Microsprint programmable lathes where things often called "diodes" were > plugged into holes to program the machine. > > I feel that a couple of PCBs. spaced a small distance apart, could have > plated-through holes linked by "something" being plugged through them. The > problem being to find the "something" that will make contact with two holes > at the same time. > > A single PCB and an array of jumpers would work, but that would be 480 pins > to keep track of > > The plated-hole idea has 240 holes, but only needs 8 plugs to do the > programming I need. > > 2mm banana plugs do exist. > https://uk.rs-online.com/web/p/banana-connectors/7632907 > > But I am not sure if they will reliably connect two plated holes. > > -- > atp > "A motorcycle is a bicycle with a pandemonium attachment and is designed > for the especial use of mechanical geniuses, daredevils and lunatics." > � George Fitch, Atlanta Constitution Newspaper, 1912 > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
