Hey everyone,
I'm making a simple power supply with an LM317. I want to be able to read the output voltage and current with an arduino and display it on an lcd or something.
I made a voltage divider so I can do an analog read of 0-5v and calculate the Vout. But Im not sure how to measure the voltage drop of the shunt resistor since i would have to connect the other end to the arduino's ground which would short the whole circuit and what-not.
how would I be able to measure the current?
(wasn't sure whether to post in Microcontrollers/ FPGAs or Projects/Designs so I apologize for spamming the Beginners Forum.)