I have an application that I was thinking of using an accelrometer for, but now I wonder if there is a less expensive and easier method. Essentially I want to wake up the circuit if the box is picked up. So I guess more of a movement sensor....its known by another name, as googling hasn't been all that helpful so far. --------------------------------- Yahoo! for Good Click here to donate to the Hurricane Katrina relief effort. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist