I use ADC current measuring, because of high voltage (2x3,6V in series … 7,2V) i understand how is Energy caluclated, when I use ADC current + ADC voltage against AGND, i guess that VoltageCurrentTime. But when i measure current in circuit with high voltage, i have to disconnect AGND because of very bad reading (very high idle current, normally 200uA but with AGND 40mA+). But when i disconnect AGND and measure only current, is all alright, but Otii keep Energy calculating… How without voltage ? I have only one shunt with ADC- and ADC+ connected, nothing else.
Is there any way to measure energy consumption right on 7.2V with otii ?