On 28 December 2012 05:05, Gene Heskett <[email protected]> wrote: > On Thursday 27 December 2012 22:00:41 Dave did opine: > > > Gene, I know you wanted to derive power from an RS232 port, but why not > > do a port steal from a USB port. > > > > Plenty of ma at 5vdc regulated. > > > > Also, there are lots of TTL to USB and RS232 converters already > > assembled on Ebay - very cheap. > > > > Dave > > > Cheap until you check the shipping... :( > > I have now arrived at the conclusion that the pin I reserved for one of the > homing switches is of far less utility than this, so since I never wired it > up anyway, it will get re-purposed for this. But I need some slightly > warmer weather before embarking on that project. > > Thanks Dave. > > Cheers, Gene > -- > > Why don't you just open the case and bring a 5V wire out from the PSU harness? If it's a long stretch, then use the 12V line and put a 7805 at your end.
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