Hi Everyone: I have now released version 1.0 of my UnoArduSim simulator for WIndows.This simulator allows you to test and debug many Uno programs without needing any of the the actual hardware. You can connect virtual I/O devices to a virtual Uno on a virtual lab bench, load and modify your program, and run, run-to, halt, step into, step-over, and step-out-of while viewing all local and global variables/arrays/objects. Full details and download at www.sites.google.com/site/unoardusim/Enjoy!
Sunny ways, Prof. Simmons, sunny ways. Posted from the foot of Kingston Rd. in Toronto, so you are literally just up the street from me.