Urs Hunkeler ha scritto: > Hi Francesco, > > The potentiometer (probably used as a voltage divider?) might amount for > up to (3V / 450 Ohm =) ~6mA, not that much but it's already on the order > of the power consumption of the microcontroller. If the total power > consumption for sampling the sensors is around 10mA and the batteries > have an internal resistance of approximately 3 Ohm, that might account > for fluctuations of the supply voltage of up to 30mV. I don't know > whether your noise is bigger than that. In any case you'll probably have > to ask an electronic expert. If at your university or company you have a > technician (one with a soldering iron) you might want to ask him. They > often have surprising insights based on practical experience rather than > theoretical knowledge. > > Cheers, > Urs
Ok, thank you very much Urs. Your posts have been precious for me. :) I'll ask a professor! :) Thanks again, -- Francesco Ficarola <francesco.ficarola_at_gmail_dot_com> [GPG KeyID: 0xDBA99D92]
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