> They are also going to be polled, and will return the voltage they find > at polling time. What they won't tell you is what various ripple > voltages are, both the initial rectified mains at 100/120Hz and the > residual switching frequencies of the various step-down regulators.
Yeah, I think we'd need a kind of sensor that doesn't give just the current voltage but gives a bracket of the lowest & highest voltage seen since the last measurement, or one that can trigger an interrupt if the voltage ever goes outside of a given range. === Stefan
