Since Arduino ADC is 10 bit and it can read up to 5V, the minimum readable unit is 4.9mv (5/1024) on it´s Analog ports. Thus, between 0 and 150mV you will have ~ 30 readable values.
In order to read 0.1mV you´ll need an amplifier.
Since Arduino ADC is 10 bit and it can read up to 5V, the minimum readable unit is 4.9mv (5/1024) on it´s Analog ports. Thus, between 0 and 150mV you will have ~ 30 readable values.
In order to read 0.1mV you´ll need an amplifier.