Jan 29

How to destroy an Arduino Nano

Step 1: Apply 12V to the 5V input.

Step 2: Your Arduino Nano is now destroyed.

I forgot to disconnect a jumper on my breadboard before popping in my handy breadboard regulator.  Fortunately I didn’t have any other parts on the breadboard.   It looks as though the USB controller survived so I may be able to just replace the Atmega328 and get it going again.

So, if you’re thinking about connecting 12V to your Arduino’s 5V input, don’t do that.

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