Just because I think like an old man doesn't mean you should, too. That is a great link to a great company with great products. Not to be too stodgy, but 8 hardware interrupt triggering signals on the ancient Linux UART is still pretty cool. And "push pull" +-12V is still a pretty good industrial signal. I wonder what Infrared is all about?? Andrew Lunn wrote: > On Thu, Jan 30, 2020 at 07:12:51PM -0600, Rick Engebretson wrote: >> Thanks Ryan. >> >> The first thing I want is an RS232 to TTL board. > > Hi Rick > > Maybe not exactly what you want, but you can get FTDI 'cables' which > are TTL RS232 one side, USB the other, with full flow control. > > https://www.ftdichip.com/Products/Cables/USBTTLSerial.htm > > And there are other vendors making similar things. > > Andrew > _______________________________________________ > TCLUG Mailing List - Minneapolis/St. Paul, Minnesota > tclug-list at mn-linux.org > http://mailman.mn-linux.org/mailman/listinfo/tclug-list >