Mostly I hate Novices but this time, I am one..... Does anyone know something about the Dallas Touch Memory parts. It's a kind of battery-like 64-bit memory cell, with a 1-wire protocol. YES, only one wire to read the contents of this unique-serial number memory. The only problem is that the TIMING is very difficult. Can anybody help me ? Is te DS2404 interface chip something to use ??? Is PIC-BASIC to slow to programm in ?? NB a very interessting site: http://www.iButton.com/iButtons/index.html really great and the parts are very cheap, only the software...... Remko