I’d like to detect when i unplug my iPhone first thing in the morning, after having plugged it up overnight, in order to trigger my house to wake up. This might work with a smart plug that has real-time power usage monitoring. But by the time it’s morning, the iPhone will be fully charged and only be drawing a small trickle-charge. So this would work only if the power draw due to trickle-charging of my iPhone (1) consistently remains above a small, minimum threshold; and (2) a smart plug can detect when the power usage drops below this small threshold (e.g., to zero).
So, my questions for those of you who have used smart plugs before:
(1) will the trickle-charge remain steadily above a threshold, or will it fluctuate even down to zero watts at times (if it fluctuates down to zero watts for any meaningful length of time, it won’t work very well since I’d have to detect zero watts for X seconds/minutes and that’d be too much delay to wake up the house in time)
(2) do you know of a good smart plug for real-time power usage monitoring that can detect a drop below a small threshold?