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Using CT sensors and emonlib with an esp32 to read current
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tavenger5 is
in
Connecticut
Post Body
I've been getting a current reading between 1 and 3 when nothing is connected to the CT sensors, and I can't figure out why.
Is it interference from the ADC?
I've modified emonlib to use the 12 bit esp32 ADC. Power is coming directly from USB.
Things are setup with the CTs very much like this video: https://youtu.be/8KXLDy0pp4I
Any ideas?
Edit: code looks like this: https://github.com/openenergymonitor/EmonLib/blob/master/examples/voltage_and_current/voltage_and_current.ino
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