OK, I haven't breadboarded this myself, but here's A circuit that looks like it will do the 3 to 5 V conversion (and back interestingly enough...just check if the driving volt level has enough juice to drive the LED).
Its unidirectional, remember this so two can implement a UART TX and RX, however there are some hardware protocols that require line bidirectionality that I can't easily figure out how to do. <https://lh3.googleusercontent.com/-e7tP5_dQ1u4/WJLoQF-lHdI/AAAAAAAAAEo/-NRZfWX9bCsVpmLUvhlBFuQVu3qPLYhsQCLcB/s1600/PS2532-Example.jpg> On Tuesday, November 8, 2016 at 7:39:33 AM UTC-7, mzimmers wrote: > > Hi, all - I thought I posted something about this last week, but a search > doesn't turn it up, so here goes again. > > I'm working through Molloy's book, and trying to build the opto-coupler > circuit in chapter 6. I'm not a hardware guy, so I'm feeling my way along > here. The diagram doesn't show specifically how to wire up the four > connectors. I looked at the data sheet for the device, which was helpful, > but still doesn't get me home. > > I could trial and error, but I've already fried one component, and they're > not easy to come by in my area. Can anyone help clarify this configuration? > > This is the specific device: opto-coupler > <http://www.farnell.com/datasheets/2050347.pdf?_ga=1.151569401.1989118912.1477330330> > > Thanks... > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/b8489925-1439-4dc8-bd80-eb8037c01b65%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
