I am trying to make some measures with a shunt resistor of 100 mΩ (This one from farnell).
My setup is just as is described in your doc. I have used two loads: one embedded system and one simple resistor of 100 Ω.
On project settings I set the ADC current checkbox and set the value of my resistor.
However, measured currents are not the expected. I am using a regulable power source so I can see the current consumption there, but the OTII does not match the values so far. For example, for currents of 200 mA I get 300 mA with OTII.
Am I missing anything?
I thought to fake the resistor value on OTII software to match the current, but I don’t think it would be the best way…
I want to use this setup because I have a device working from 7V to 12 V and I can’t use the OTII to power it.
PD: I ran a calibration process before the tests, with a precision resistor of 1 MΩ, just in case