Quote Originally Posted by tasmod View Post
pedja089, thanks for info I will check that Max chip out.

This uses a .047 in ground line. I've just been out and bought a .047 3W resistor anyway, so will try a mod to my board and see if I can re-configure things around.

Rob
Whilst that higher resistor will give you 4x the ADC reading vs a 0.1R resistor, that's still only an ADC variance of about 60 steps between 1000mA & 300mA for a PIC supply of 5V....like I say, if you use a PIC where the ADC positive reference can be tied to it's internal 1.024V fixed reference (eg 16f1824), you'll then get a variance of about 240 steps between 1000mA & 300mA current draw ...which is starting to become useable.