> a pull-up of a few hundred is going to be wasteful of power Just to clarify, there is no bottom limit for a pull-up on an input, eg it can be tied to Vcc, but if the pin becomes an output (dual function or accident) then tied hard to Vcc is bad and/or wasteful Joe --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .