We use 57.6 K In a message dated 7/26/2013 11:26:12 A.M. Eastern Daylight Time, cfhar...@erols.com writes:
I guess that depends on how much speed you want. Techniques like this work fine up to 19.2K or so. Which is what the OP was asking to do, as I recall. I generally just use a max232 chip and live with all of its warts. -Chuck Harris ewkeh...@aol.com wrote: > But do you get the speed > > > In a message dated 7/26/2013 10:41:02 A.M. Eastern Daylight Time, > cfhar...@erols.com writes: > > I have enclosed a sketch of the usual way of using opto's to make an > RS232 like interface. I haven't spent much time thinking, so I am sure > that I have a few things backwards, but you should get the gist of how > it is done. > > It is only RS232 like because it has only a single threshold. > > -Chuck Harris _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.