Hello,
I'm currently trying to measure current ranging from about 0.9m A to 5m A at around1.4 V and want to automate things while maintaining a correct accuracy (a multimeter is my best friend at the moment :) ).
Searching the net for information i found the INA 219 witch seemed perfect to use with i2C until I discovered the low accuracy at this kind of currents.
You're welcome to laugh at me if the question is stupid (my electronics lesson are long forgotten now) but may I use a shunt resistor of higher value than the recommended 100 mOhms ?
Is there any risk other than having an incorrect reading ?
Thank you for your time and any of the inputs you can give to me!