Smart Power Strip with master-slave mode

Modern world most families has lot of electrical appliance. For your convenience purpose, the manufacturers usually added a “Stand-By” function. like TV, HIFI, Game Machine,….etc However, you might not know that western countries has a statistic survey, every family each year need to pay extra 400kW power fee. This is almost HKD 500 for a year. (eq a general family 10% of total power consumed in a year. check out the chart for details)
Reference link or you may check out from WiKi
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