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Sweet. I'll check out again. Knowing the math helps a ton.

Wouldn´t it be sufficient to specify 400 as the range of that channel with an offset of -200A I don´t have my transmitter handy, but if it´s possible to set the range to 400 that should work. like that 0v would equal -200A 1.60v = 0A and 3.2v=200A Rainer Perhaps with open9x. But for whatever reason...

Thank you very much!

Mike, I built a 200 amp self-powered current sensor based on the ACS759 (3.3v version) and a switching vreg. I am currently forced to read the raw volts from the sensor and do the math in my head. I'm familiar with C++ but after an [admittedly short] time of searching I was unable to find where you'...