Arduino Analog Watt-Meter Experimenting

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I'm playing around with using an Arduino with a current sensor to be able to figure out how many watts are running through a power cord and then controlling a servo with a pointer on it as an analog display.
The current-sensing circuit is based on the "OpenEnergyMonitor" project.
I thought it would be neat to measure how much power my solar panels are making and then display that information on an analog display. Maybe I would make it look like a speedometer out of laser-cut wood or acrylic. Just throwing ideas around!
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