[tdressel]

Last year - In our setup, we used the Classmate's IO page to show that the Cypress was plugged in and then I haven't bothered to look at the values once we had things working.

If you could confirms something for me - you indicated that if the cypress is set on the classmate to 'compatibility' mode, then, if our team causes a DO (digital output) to be "on"/"high"/etc. - that the classmate's corresponding DO will be lighted? If so, that's a great diagnostic item. For us, when I say an LED turns on or off, I'm speaking of LEDs that we wire up to the Cypress Carrier Board (from andymark.com). I remember last year that we wired them up wrong and then corrected it. So, I'll check that as well.

For your last question, I need to revisit the students with the information provided in this thread because I can't answer you as to how/why the LEDs are not working the way we intended. I'll get more information tonight and post again.

I can tell you though that for all the INPUTS (analog and digital) - the Cypress unit works fine. So, I think it's our collective lack of knowledge that is hurting us in regards to the LEDs.