This may be a simple question to answer but i was wondering how other pic users go about the task of testing the software in the finalised product.It seems to me that an expert in software writing will have a higher degree of confidence in the code than a begineer.I know that simulators and emulators help this process but i was wondering about other issues like noise immunity(i know someone that straps the final design to the side of a bosch hammer drill and fires both up!!) At what point are you ready to say product ready for market? Are 100 prototypes built and tested in as would be test environments? Id be intereted to hear from both begineers and seasoned developers on how they approach this Dave -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads