Automatic Power Controller
2016-08-23
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The circuit presented here is a micro controller-based automatic room light controller. The micro controller along with op-amp LM324 is wired with two IR sensor units to count the number of persons going inside the room and the number of persons coming out. When the number of persons inside the room is zero, it automatically disconnects the power. When someone enters the room, the counter increments and the power to the room is restored. The number of persons inside the room is displayed on a seven-segment display.
The seven-segment display are multiplexed the relay will energized depend upon the number of person inside the room it automatically switch the light
c
自动
控制器
电源
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