fruct0se
Newbie level 4
I need to find a way to measure the conductivity or resistance of a liquid using a microcontroller with an output of 5vDC. I also need to use no more than 1vDC to do so.
So far I have tried reducing the output to 0.8v and using an opamp on the ADC input to amplify the return. I cannot seem to get it right no matter what I do. Can someone point me in the right direction on how to accomplish this or show me an example? Maybe I am going about this all wrong? Thanks!
So far I have tried reducing the output to 0.8v and using an opamp on the ADC input to amplify the return. I cannot seem to get it right no matter what I do. Can someone point me in the right direction on how to accomplish this or show me an example? Maybe I am going about this all wrong? Thanks!