Hello all I'm a newbee so forgive me. I've been playing with the Arduino Uno. I'd like to measure 0-100mV with 0.1mV resolution. I used the Internal 1.1 reference and got the about 10mV resolution. Can I use the Aref pin at 100mV to get the 0.1mV resolution I want? When I tried it the read value …

reading mV

Forum 2005-2010 (read only) General Frequently-Asked Questions

system December 27, 2010, 5:28pm 3

Yea I tried that but for some reason the Op-amp out was not linear throu out the range. I could tune it for the upper or lower range. Maybe I need a better op-amp circuit.

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reading mV

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