On 1/19/07, M. Adam Davis wrote: > > Is your iron grounded? It is, but the board was not connected to anything else, no current path. Is it possible that they contain high enough > voltage that the iron may bring two conductors close enough to arc? Not even remotely. I'm noticing a lot of static electricity in southeast michigan due to > the cold weather - perhaps you are starting a spark which provides a > path for a capacitor to discharge. No. not static, or charged capacitors. I've shorted a lot of caps, and I'd say what I saw, in each instance, looked like 1500+uF at 12V or more, and this board only has a 5V rail on it, and no caps bigger than 100uF. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist