- Joined Jul 25, 2015
I'm looking for an Arduino or other programmer-free micro-controller board with isolated USB ground. I recently made a bonehead error in the lab where I used an Uno overnight to read off a signal channel I'd amplified by a factor of 250 and had a ground loop from the input ground to the USB plugged into my laptop. I came back in the morning and found the serial data had been going back and forth between 0 (probably was saturating negative) the amp supply rail (5V). That issue's been resolved, but I still want a solution for the next time I need to use an Arduino and don't want to risk damaging my computer because of an oversight. What I'd really like is an Arduino (or other programmer-free micro controller) with an ADuM4160 or equivalent device built-in out of the box. This kit is the closest thing I've found so far, but I'd rather not spend $33 on the isolator plus $25-35 on an Arduino to have them be two loose boards with a dedicated cable. Is there a board that puts 'em together? Would I be better off making it myself? Alternatives? Thanks!