I was just testing any pin. I have two BOB’s connected to two parallel ports. All my steppers are working on BOB zero. No issues with any of that. BOB “1” has spindle-motion-reverse => paraport.1.pin-04-out. From this BOB I have both + and - 5v going to Inputs of external relay along with output of pin 04. By issuing M4, I assumed would get a click or trigger from external relay? This could also have been setup for coolant/air or any external device. I have not connected anything to the business end of the relay. Not sure if that would matter. Also, the BOB is powered by USB not sure if that matters. I have the ability to power it with an external 5 volt source as well.
On Fri, May 15, 2020 at 3:59 AM andy pugh <bodge...@gmail.com> wrote: > On Fri, 15 May 2020 at 01:33, Dan Henderson <luvtof...@gmail.com> wrote: > > > > Hello everyone, I have a simple question for you. I’m testing the ability > > to trip a simple 5v relay with an output pin from a 5 axis BOB and don’t > > seem to be having any luck. I have motion-spindle-reverse mapped to the > > output pin (04). > > When you say "pin (04)" do you mean parallel port pin 4 or BoB pin 4? > BoB Pin 4 is a limit input, connected to parport pin 13, and is an > input not an output. > > Parallel port pin 4 is connected to the STEPY output, and I suspect > you need that for moving your Y axis? > (If not, then it probably should work) It looks like the relay board > probably needs a 5V supply in addition to the logic and gnd > connections. > > -- > 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
