Thanks for the replies. I should have included this picture of the diagram:
<https://lh3.googleusercontent.com/-U927dQzEUqI/WCHoTYM8reI/AAAAAAAAAds/IXiU4Ts-4lwKKyc-qQGdzy3uZze7wpVIwCLcB/s1600/opto.JPG> It's the opto-coupler (labelled LDR) that I'm having trouble understanding how to connect. Przemek: I haven't tried anything. I don't want to make a connection that could damage anything. Thank you for any help. -- 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 [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/a21eb33f-6078-4728-81eb-272ac0a64a1e%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
