Comments on: usbmot

By: laosoi

laosoi — Fri, 23 Apr 2010 15:42:28 +0000

Hello Andreas Goelzer,
Thanks for your project!
Please tell me how to control 25A, 12V, 3800rpm brushless motor using this project?
Help me, i want to control high rpm motor using usb!
Many thanks

By: Alex

Alex — Sat, 27 Mar 2010 09:09:02 +0000

Nice job…

By: Andreas Goelzer

Andreas Goelzer — Sun, 28 Jun 2009 18:38:02 +0000

Thanks a lot, nice to hear it helps you

I don’t know how pyusb works, and this control-endpoint stuff is not exactly comfortable. But with vusb, options are limited. I’m planning to redo this with an at90usb162, that could then have a nice serial interface and work in more environments.

If you just want to control this device from python, you can have python call the commandline-program with os.system(“./usbmot-cmd write 1 2000″) or such stuff, but that’s more a hack than a real solution.

I hope you somehow get it working, good luck

By: paryl

paryl — Sun, 28 Jun 2009 18:00:08 +0000

Andreas, this is awesome stuff. Exactly what I’ve been looking for! I’ve got it working using your example programs, but what I really need is a python version.

Have you managed to control it using python? I’ve been trying for a few weeks now using pyusb, but nothing I do lets me communicate. I suspect it’s an issue with not knowing the proper endpoints, or something to do with the data I’m sending. I consistently get “error submitting URB: No such file or directory”.

I’d love some hints if you have any to give…