Hello good evening, I do not know how to make the SCT read negative values, and know the direction of the current, I have solar panels and I would like to be able to see this value, but the polarity that I put the clamps always gives positive values, The measurements they are correct in terms of magnitude.
thank you very much greetings
I attach a photo with the sketch and the arduino schematic
You can never know the “direction” of current flow, because it changes direction 50 times per second. Only the power flow has a direction, and you need to compare the current against the voltage instantaneously to calculate that.
