Oh... and be careful, measure stuff first to make sure they don't have pull-up resistors, etc.. If the BBB I/O ever sees 5v you WILL fry it. Ask me how I know...
On Tuesday, February 27, 2018 at 2:51:44 PM UTC-5, Daren Schwenke wrote: > > It looks like they use the optocouplers for inputs and possibly a level > converter/buffer/inverting buffer for outputs. > Find a good picture of the chip tops and look them up. That picture is > not quite good enough. > It will probably work fine. Some old laptop parallel ports I've stolen > buffer chips from ran at 3.3v. > > On Monday, February 26, 2018 at 4:30:25 PM UTC-5, Andrij Senyk wrote: >> >> Hello, >> >> I have this one mach3 interface board 5 axis >> >> https://www.google.com/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=2ahUKEwi25KzywsTZAhXKliwKHXBgAK0QjRx6BAgAEAY&url=https%3A%2F%2Fwww.aliexpress.com%2Fitem%2FCNC-5-Axis-With-Optocoupler-Adapter-Stepper-Motor-Driver-MACH3-Interface-Board%2F1975186212.html&psig=AOvVaw2ExyVfNS9tou9jF77cLINW&ust=1519766863377451 >> >> Its possible to connect to BBB without capes? That board have optocoupler. >> > -- website: http://www.machinekit.io blog: http://blog.machinekit.io github: https://github.com/machinekit --- You received this message because you are subscribed to the Google Groups "Machinekit" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. Visit this group at https://groups.google.com/group/machinekit. For more options, visit https://groups.google.com/d/optout.
