What I/O boards do users want?

Author	Message
jebz Regular Member Joined: 13/06/2011 Location: Australia Posts: 79	Posted: 10:15am 13 Jun 2011         donmck said   My friend and business associate Richard (http://emx.net.au) will be working on I/O boards for the Maximite Computer. What we have to decide is what users want most in the way of I/O boards, and produce them. I've looked at the "Maximite Expander" and it's a shame so many of the interfaces are jumpered out of service when you choose analogue, input or output for the port pin. I think if the port from the Maximite had tracks and holes on the bottom of the PCB and the expander had tracks on the top with a grid of non-plated through holes these could enable connections like a pin patch. A number of holes wouldn't be required because some of the functions aren't available on all of the pins. This would enable interface board linking as each board would only link in the devices to the lines that are required. I'd like to see variable gain analogue inputs. Ground independent for current measurement would be good. Digital opto coupled inputs with an isolated dc supply for the external interface side. Relay outputs 2A with isolation from the coil to contact zones. With the pin patch design these interfaces could be made as a fruit salad board containing a few of each. While other boards had say 8 inputs or 8 outputs. .