Can somebody point me in the right direction with this? I want to measure the current passing through multiple circuits and display on an LCD. I've read about putting a resistor inline with the circuit and calculating the current based on the measured voltage. I want to do this for multiple (8) circ…

Measuring current multiple circuits without common ground

system March 27, 2012, 7:49pm 2

Maybe a way to isolate the circuit from the arduino?

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