> Ah... that probably means I don't need/want to. Are you saying you > normally just leave it on (unless it won't be used again for a while)? So far I've just left it on (when using it at all) but that doesn't mean it's the right answer for your situation. I hadn't thought about this issue because I have so far not run into a case where power was limited and A/D readings are only needed occasionally where the processor couldn't otherwise sleep. ******************************************************************** Olin Lathrop, embedded systems consultant in Littleton Massachusetts (978) 742-9014, olin@embedinc.com, http://www.embedinc.com -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu