I have a NAVIO2 with a power module, both bought from EMLID store.
I would like to monitor the battery state through the battery voltage and current signals.
So far I think that the ADC is 12-bit, so the ADC.read() returns 0…4095 for conversion and -1 for error.
Could anyone help me with the followings:
What is the reference voltage of the ADC?
The example divides the ADC readouts with 1000 and prints out [V] units. Does this mean the ADC ref is 4.096V?
What are the voltage and current scalers in the power modul (ADC A2 and A3 channels)?
I have found a thread in the community forum about an experimental approach (estimating the current scaler from the charge, reported by the battery charger), but I think there could be a more direct answer to this.
Thanks a lot.