I need to measure and display on a 2004 LCD the current on a spot welder up to almost 1,500 amps. The output voltage is only approximately 2.5VDC. I have not seen any kind of sensor that would even come close to working. I'm using a UNO R3, ATmega328P-PU to control the spot welder and would like t…

Measure and display approx 1,100 DC amps

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