I skipped the 18F and 24F parts and jumped from Assembler on the PIC16 to C on the PIC32. If the OP wants to use SMS I would definitely recommend doing it in C rather than assembler, and the PIC16 Parts are not the best platform for C, hence my jump to PIC32. BUT - Finding example code and information on the PIC32 is difficult compared to the PIC16. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .