On Fri, 23 Jan 2009 18:56:38 +1100, Astan Chee wrote: > Diez B. Roggisch wrote: >>> >>> >> If all you need is on-off - why can't you just use a switch? >> >> >> > Because I want to control the on-off the device using a computer and > write software for it (which I am confident I can do if I had references > to how the wrappers to said interface). Cheers > Astan. >
How about (a crazy idea) using the audio jack out? (DISCLAIMER: Little Hardware Experience). High pitched sound (or anything in sound-ology that means high voltage) means the device is on and low pitched sound off. The device will need an additional transistor to separate low voltage from the high voltage. I don't know how much power can be pulled from jack out, but for a home brewn device it is still feasible to draw power from USB and signal from jack out. -- http://mail.python.org/mailman/listinfo/python-list
