I am developing (yet another) farm automation program (it will be open source) and would like to pick up the OSpi board. by any chance did you publish your board test code? I can dig through openprinkler to figure out how the HW works, but it would be nice if the HW validation code was around?
specifically I get that the Solenoid drivers are connected through a 74595 and that you have an A/D available, and that you have some buttons on GPIO18/24/10 and some other?
Maybe is there a HW document?
many thx