First let me say " THANK YOU " to all that have helped me in the past. I'm in the middle of making a routine that reads a resistor value and wanted to use more than 8 bits for the value. Is there a way to use 2 registers to make a 16 bit variable ?? Can the variable be sent via RS232 as decimal ?? At this point in time I have the routine working great except that I would like to use bigger values. Thanks for taking the time to read this post !! ---------------------- James and Iliana Austin Texas Automotive Technician Electronics Hobbyist Software Engineer ----------------------