On Thu, 28 May 2015, andy pugh wrote: > On 28 May 2015 at 00:40, <[email protected]> wrote: > >>> When you connect the mains supply, does 5V appear on the pin shown in >>> orange in that picture? >> >> No, I get about 0.25 volts > > 0.25 volts relative to where? In the 4th picture between the 4th and 5th terminal from the left marked 5v and gnd
> I guess relative to the PWM pin would be > the right place to measure. > > Anyway, if that is what you measured it means it is probably an input > to an opto-isolator, so you can connect 5V from the BoB to the 5V and > the PWM pin from LinuxCNC to the PWM pin. Invert the PWM output so > that 100% PWM is 0V on the pin and 0% PWM is 5V on the pin and it > might work. > > -- > atp > If you can't fix it, you don't own it. > http://www.ifixit.com/Manifesto > > ------------------------------------------------------------------------------ > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
