> I had assumed (perhaps wrongly) that it had a 5V regulator. > Anything that takes power from a USB socket assumes it's > 5V nominal Considering the damage that could be done it's disappointing that there's no regulator. I can imagine how a manufacturer looking to make a quick buck from something that looks useful and innocuous wouldn't include even a small buck-boost -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist