mrgizmo wrote: > I have 2 projects one using a 16F628 and another using a 12F675 both > running on 5V. Is there an exact value to use as a pull up resistor, > or is it even nessasary? Pullups on Vdd and Vss are either pointless or not recommended. Other pins depend on the application. ****************************************************************** Embed Inc, Littleton Massachusetts, (978) 742-9014. #1 PIC consultant in 2004 program year. http://www.embedinc.com/products -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist