Hello! So basically I'm rebuilding a PSU that I made when I started my career (1.2v to 24v - 1A) and instead of using the old analog voltmeters, I'm designing an Atmega328 based multimeter. I already have all the design completed but during a check up of all the circuitry I noticed that all the gro…

Concern about common ground with different sensors

knut_ny May 23, 2014, 8:00pm 2

ensure the datalines (to arduino) dont exceed 5V
avoid ground loops (choose common point)
looks OK to me

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