Hi analog experts,
I would like to know your opinion on the analog part. I didn't design such complicated thing so far.Please what you think about the schematic?
The target resolution should be about 0.1% of max. value.
The MCU will have TARA button to set zero value so that the offset doesn't matter. The speed is not critical, the output is only used for LCD display. Two readings per second would be fine. It should be powered from two AA cells directly (about 3V and decreasing).
