QA

摘要

Q Whenever I see a version of "smart house" advertised, I check to see if it has what I need, and it never does. I want something that will tell me when my microwave oven stops, when my dryer stops, and when my washer stops - without modifying the appliances themselves. I've made little boxes to plug microwaves and dryers into, and they let me know when these finish, but the washer eludes me. Sometimes the motor is taking a lot of current, but then in the next second, all that's running is the timer to get to the next action. I know that a GFCI handles a lot of current while detecting a small amount of current; is there a way to change this circuit to tell me when the washer is completely finished?