The read data are processed from the sketch and then sends to the PC via Xbee module. The Arduino sketch of the prepaid energy meter detects the blinks. This potentiometer has the task to adjust the sensitivity threshold. The same number of blinks will be equivalent to 1 KWH or 1 unit of electricity consumption. Open the Serial Monitor of Arduino IDE by click Tool-> Serial Monitor. The LED blinking causes the voltage drop down and this value is read by Arduino and compared with the voltage acquired by the potentiometer connected in the channel A0. In simple terms, the power monitor shield provides an AC to DC power source for the Arduino and Ethernet Shield, samples the AC voltage waveform for power factor correction, and uses the current transformers to measure current draw of branch circuits in your home breaker box. Electrons in semiconductor re-assemble electron holes and release energy in the.
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