> Definitely not. It's just an information which must be provided > at any "basic of electronics" course. A clever user must know > how to use an open colector, open drain or open source device. > If does not, than must learn first. Well, I can see there are two schools of thought here. Mine and everybody else's ;-) -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads