how to measure home ac current 110v / 200v with arduino

The cool thing about an ACS712 is that current is measured is measured in two directions.  What this means is that if we sample fast enough and long enough,  we sure to find the peak in one direction and the peak in another direction. With both peaks known, it is a matter of knowing the shape of the waveform to calculate the current.   In the case of line or mains power, we know that waveform to be a SINE w ...

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Using the Cirrus Logic CS5464 for AC Current Measurement

Continuing the series on examining devices to measure AC current, this time we’ll try out the CS5464 from Cirrus Logic.  I initially built it up on  a breadboard, but I’ll skip writing up this test and instead build up a prototype and run AC line power through it.   This is a Three-channel, Single-phase Power/Energy monitoring chip, and also can use current shunts and is intended for power meters. This devi ...

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Use Arduino for Projects is Stephen Fry proof thanks to caching by WP Super Cache

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