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? 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
