I'm about to buy a Duemillanuove and drive it with PD but I'm worried about the speed. I need to control the digital output with a precision of 5 millisecond. Is it possible to reach that speed with Windows + PD + usb ....? If not, what is the maximum speed?
Also, do you know a fast low power relay board to connect to the interface? something with electronic switches like transistors or Reeds or optocoupler ....
Thanks very much Dyno