I'm starting the next phase of a small project. I just about have the power draw bar ready to mount. It's controlled by a small processor with two buttons for load and release which runs the air valves which move the pneumatic cylinder and spin butterfly impact wrench. To load/release from LinuxCNC I'd like to be able to put a couple of buttons on the AXIS user interface. The load button needs to create and send out a serial port the message "t418102\r" and to release "t418104\r". When AXIS first starts I'd also like to send out "C\r", "S5\r" and "O\r". When AXIS closes to send out a "O\r". And obviously there has to be a way to select which serial port if there are a few. (The one I want to use is USB based). In the long run I'd also like to be able to receive from the serial port. Messages like "t718105\r" for example but that's not critical to start with. I've been reading http://linuxcnc.org/docs/2.4/html/hal_comp.html And I imagine there are a few other documents out there too. Is there a simple tutorial for adding a button to the AXIS screen and having the button press generate a message out a serial port? Thanks John
_______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
