> Is there a 16F84 similar device but with larger > Programm RAM (and possibly a free c compiler) ??? Hi there ! Yes you can use the 16F628 it has tweice the memory (2K) as the 16F84 which only has (1K) and its pin compatible and can be programmed using your excisting programmer ... and its half the price of the 16F84 ! Best regards Lasse Madsen -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads